A suggestion. Ignore who use your topics to blame or flame about random things that aren't related to the topic meaning. People here is often nervous and use the forum to feel sage or fulfill his lack of relax.
Smile and wait. If the thief will be interested on have fun in a game, he will answer. If the thief wasn't so interested, he will not answer. If the thief was a random noob or troll, he could troll you.
Everything could be possible. Just people love to say theyr personal opinion if this will fail or not, thinking that an Opinion is the only truth, or thinking that they'r easy possible truth should stop someone on Play this game for fun and make topics that bring more game.
It will happen often, and not only in a forum. Take what of usefull they say, ignore the way the'r used to say it to you. It's easy feel right when you choose the easyest truth.