Reputable sellers don't normally delete their threads. In fact, they want to preserve their threads for everyone to view so as to build up their reputations and credentials, especially if they get good feedback. All bad sellers will want to delete their threads in order to hide their shits. Don't get me wrong here. Admittedly, there are also many good sellers who delete their threads. Maybe they just don't want to have to answer anymore enquiries or they are just shy in case their friends/relatives know what they had sold, especially if it's cheap stuff and especially if they are from rich background or they are professionals.

hmm i think apple gadget all have this kinda problem
my ipod touch 4th generation also.. left it there for a few month
then when i sold it off the other day
the buyer told me sth wrong with the battery...it drains quickly
so im guessing their battery have to be constantly charged else it will just KO

I think the seller is wrong here. Firstly left for a few months. Then someone replied left for few months still got battery, suddenly become charged for awhile. Sounds like it was made up. How can you blame your customer for coming back to you ONE day after selling saying that there's a problem with the item you sold? It's one day ffs. Not a year later. And lastly to the buyer, you're at bigger fault for threatening. I think it should be dealt professionally and not through threatening and all. I wouldn't stand on anyone's side here, BUT if the buyer didnt do the threatening then the seller is wrong.