Buying and selling accounts is allowed by forum rules but it is discouraged by forum rules and forum community because if a person does not want to be an organic member, there is something suspicious with bought account, for scam, for gain trust, for spam ...
Those who are in a haste to acquire an already established account raise questions. What exactly is their motive? Are they seeking benefits or trying to scam people by appearing trustworthy?
You know it's not easy to build a reputable account in the forum; it requires time, energy, and dedication. For someone to want to bypass this process, there's already a red flag. Similarly, when someone sells their established account, it raises suspicions. What went wrong after working hard to build it? Why sell it off?
Buying an account is not advisable because both parties usually have ulterior motives, which are unclear. It's best to take your time and work your way up the ladder. It's more profitable and safe.