And if it's not,
How then did you become so experienced when your just a Jr. member in the forum? Naturally, I feel Jr. Members haven't been involved with Cryptos for long.
To be fair(but definitely NOT defending OP), you can be a successful crypto trader without even having an account on Bitcointalk. Other communities like Reddit and Twitter exists.
Indeed. Some traders -- either crypto, stocks, or fiat, doesn't really rely nor do make accounts in forums/social media just to have some circle of investors and traders around them. While, some prefers to be solo trading as they know well enough their expertise and have a huge capacity in risk management.
Yet, his forum establishes trust out of a user's rank and how long he was on the forum, together with how many transactions he had with other users. With the anonymity of users in here, even if you are really experienced in real life trading and were trusted by the others, that never means that the forum and its users could justify you are one. Remember, there had been a lot of scammers that told the same 'experience' thing, better be safe than sorry.