The following only personal opinion as requested by BoomChaCha. The answers not as straightforward as could be -why in front, others behind.

There are a number of basic economic assumptions and theories on causes and effects which are highly questionable and not usually tested at all (nobody at that level is brave enuf to test!!). Only if you happen to be Deng Xiao Peng but even then with Mao around not much could do. At present, most economists and planners are also enslaved by current thinking and also what we were taught. It is not usual to have heretical non-conformists to point to the economic elephants in the world scale as if they were all in Malaysia still under BN government. Therefore I am not at all optimistic that there are people of the cailbre, integrity or intellectual courage to question core accepted questions, beliefs and solutions. When I say question, I also mean recognising asking the WRONG question so naturally GIGO situation and no way improve possible as keep repeating wrong medicine. Besides this, there is a LACK OF ACCEPTANCE that ideas need to be tested and tried out and corrected/tweaked. This is a basic government, organisation, educational and cultural attitude weakness that need to be changed before progress and not blind copying of wrong or non-applicable ways are done. When I say CORRECTED, I mean the courage to declare and accept failure and sincerity to try to understand what went wrong with our thinking or the circumstances and think how to overcome. Real progress is only possible by having practical realtime DOERS and TESTERS, and not rigid central planning. programs, projects, dogmas and attitudes as in abundantly proven failed current practice.

1) Is the USA Fed rate changes good or bad? Wrong  question? Need somebody somewhere to change up instead of protecting overborrowers and speculators in household or other debt driven economy.

2) Why not all the time low to perpetually protect the interested parties under the excuses do not want big and wide failures  shoku to cronies and others?
No need to say more. This already well practised inertia.

3) Are people borrowing money from bank for living expenses by personal loans or credit card use? Or to pay committed overinflated property purchase?

4) Is BNM in charge of protecting lower income people savings or more to protect the government bodies, rich, speculators and cronies?

5) No GST, so more money available as not collected from businesses and also paid by people. So more for spending, stocking up goods and maybe do more business?

6) Does lowering OPR mean more money available for ordinary people? Obviously NO WAY is the correct answer. Lending to big organisations, cronies and projects is great for GDP figure but when did ordinary people come into the picture when money more likely to be paid to foreigners and sent out of the country forever. This idea only works if business or organisations hire more locals for lower and medium emoluments. High pay jobs to fewer numbers will have little or no impact - unless suggest go to more niteclubs, drink more, marry more wives or mistresses, have parties are the kind of impact wanted. Other than above dubious job creation story, there is little chance of pay increase as a result.

7) Does lowering OPR mean less money for ordinary people.? Undoubtedly YES because interest on savings is less, not to say anything about FD or FD promos.

8) Should OPR be lowered to encourage household, vehicle and property spending? STUPID IDEA. How are they supposed to pay back to bank? Might as well print banana money. Banks not that dumb, so more careful who to lend to, otherwise bank also bankrupt as well.

9) Should OPR be raised? YES. When rate is low, money value usually depressed as it has little or negative saving value. This means in practical business sense that prices inflated to cover the "worthlessness" of the money instead of depending on lower pricing to get more turnover. Because of the overpricing, many start-ups or even old business close down. Not just food, services, goods, imports, properties but also projects. Low OPR leads to higher pricings which negates idea of more business and better economy  although money transaction amount may be more.

10)Isn't low rate good for investment in business or industries or projects? ANOTHER DUMB IDEA. If it is not sound, it should not be encouraged in the first place at all with attractive low subsidy rates as it will only create more trouble later. The earlier bad investments failed and removed, the healthier.

11) Would a higher OPR mean more foreign funds for investment or shares market? Depends on how compare with other countries and perception of comparative country risks and quality of central banks and governments, and attitude of local retailers and big institutions and investors. The criteria is different when extra financial considerations/agenda is involved.

12) Does OPR really affect the various rates? YES as rates,   and especially as unintended negative and positive business impacts, and savers and banks behaviour looping back over time. This means the FD promo rates will still change as the banks adjust to their positions/plans due to the impact on economy and behaviour. A more sensible question may be Why have OPR make such an impact and How to delink where needed as in loans for specific purposes.

As to the choice question. NOT AT those rates but whichever bank moves up FD promo rate better.

Better you read this fast or copy it out before post get deleted by you know who.