Another sign: when you are a reputable member like me, and when you ask the noob to send first and suddenly they stop replying to your PM. Scammer! Maybe I should start a list in the public interest?
Latest possible scammer(s):
- penetration -> confirmed scammer has scammed multiple people
EDIT: I have decided I will keep this list updated and maintained. (and of course remove people who later turn out not to be scammers - but if they are genuinely looking for a trade and have only about 100 posts why would they not send first to someone like me? Hopefully I can help everyone here)