1. An absolute red flag is...those who send you PMs within the first 24-48 hours of joining the Forum. They monitor new members and hope to get to them while they are most vulnerable, before they get some good advice, confidence, some experience and make real friends. This is a major creep alert!
2. Those who send you Friendship (or Yahoo) requests when you had no interaction with them, (neither in chat, forum posts or even PMs).
3. If they whine.
4. If they get angry easily...especially after you catch them lying.
5. You just dont like the tone of him....your gut tells you he is a fake. Trust your instinct.
The following are not necessarily major alerts, but they are to me personally.
I dont like it when they call me names (girl, slut, dear...) when we have no such familiarity established.
They talk almost exclusively in abbreviations. I am not an unreasonable person, I make allowances for: lol, p.s., btw, but when he appears to be unfamiliar with the concept of whole sentences and his idea of getting to know you is "asl" (age, sex, location...yeah, I didnt know that either,)...it may not mean that they are a bad person, but it means we dont have much in common.
Infantilism (I mean in vanilla sense, not as a fetish), like I said this is just my personal beef...but I have zero interest in someone who cant hold a normal conversation.
Almost petulant, underlying expectation of cyber sex, within three minutes of meeting.
Requests for picture within first ten minutes...and if you say no, they ask for it again ten minutes later. Sorry, but I am not that stupid or lax about my own personal safety. And in either case, I dont want someone who wants me just for my looks. I have a three month rule...most fakes evaporate by then....if we are still talking after that time, and I like you, then you will get to see my picture, if not, then you have no need for it.
I used "he" for easy writing, but this applies to he/she, dom/me/switch/sub equally!