I agree - Stupid AND annoying!
Especially considering the messages are generally removed within hours.
You have to wonder why they waste their time.
How many clicks can they possibly get?
I suppose it only takes one click from one curious punter for them to steal your identity, infect your computer with malware & viruses, etc.
They have zero investment - click reply to a thread - edit/copy/paste - post... 5 seconds tops. Probably even automated bots doing the posting for that matter.
Shame the folks behind this spam BS don't apply their knowledge and skills to less nefarious endeavors.
PS - you watch - smart money says this thread will have spam replies within a few hours