Well, it is good for you to highlight this. At least people who want to invest can check around.

Yes, smelly air is bad. Who want a smelly air within your castle ?

And it's true, house facing lake in malaysia is a big no no. The maintenance is just bad. Even my friend who stays in setia alam is complaining the lake is turning yellowish since it had been handed over to the local council.

Any new purchases, buyers should open up their eyes and go talk to local and do plenty of research before committing. You wouldn't want surprises later on.