He didn't seem like an official representative, but maybe someone who was paid to advertise him on the forums. I also think that without being an official representative then you can also post ann's thread for any project that pays you for it, you are certainly not responsible because you have to tell the community that you are not one of them. I didn't see that from that user, maybe he just got paid or did have some other purpose.
I believe that all the threads he creates have a purpose. Regardless of whoever gave the instructions, activating the self-moderated thread feature means he's not new to this forum. I remember some time ago, someone offered a post job to low ranking members (without using the campaign attribute). It's impossible for people to pay people without expecting a return on more than what was spent. Maybe this is a new way to spread phishing sites.
Importantly, I have asked this and at the same time invite you guys to keep an eye on this member. For so long the altcoin announcements board has gone unnoticed by high ranking members (who think all altcoins are bs).