What do you intend to do with the account? Buying accounts is usually a precursor for committing scams. Or for defrauding signature campaigns. Although not illegal, it is definitely discouraged and is treated with suspicion.
Because they are used for scams and for other fraudulent activity, buyers and sellers of such accounts (and the account itself) should be tagged by a DT member to avoid misuse of the traded account. Tagging is a precautionary and deterrent measure to protect other users from potential scams and scammers.
It's also shady practice to see someone jump from newbie level to hero member or even legendary by simply paying a few coins. Not nice.