Enigma, you are asking if they cheat or not, I think if we are looking for just friends, we will not care if they cheat, because in friendship there is no need to cheat, some people change their names for just information protection, and we will deal with them with thier names they gave to us, but if you are looking for online love, you will ask yourself many questions, if they cheat or not, their real names or not, and I don't think it is good decision to love online because you will suffer enough with doubts, cheat is every where, in real, the net.. so, be sure if any one wants to cheat you, he can cheat you any time, and you can't find the truth, so don't trust any one 100% .. and another thing, online friends are for friendship, no more.. in case you meet net friend in real life, it will be nice to know him more.