Not a problem with this forum but perhaps worth mentioning to your favourite phpbb forum's admin:
I don't know why this caught my eye but there was something not right about a new member on my threetowners forum. I was expecting to see a website and a spammy signature when I checked him out but no. Everything else seemed above board and he'd used a gmail account to activate his membership.
Did a google search using "newest registered user is gulassa". Damn if there wasn't pages of registrations by him over the last few days on phpbb forums. Why, any theories? Could it be some type of sleeper? Gave him the boot onyway.