Is people still buying bitcoin talk account for what ?
It is safe to assume that there is still a market for Bitcointalk accounts given how much time and effort it takes to reach for example the Sr. Member rank, let alone Hero or Legendary (the latter takes approximately 3 years).
If I had to guess why, it's probably either for joining signature campaigns or attempting to scam someone, which is much easier to do with a high rank account.
I don't think the next account handover user will be honest as much as previous real owner of account with other members on forum and I guess anyone who takes the quick route to get a higher rank easily without learning anything from here either sr-legendary member by buying with the purpose of enrolling into sig campaign or to grab other benefits like loan service etc cannot be trusted imho.