Just for info, as I happened to be reading this thread:
1) @Mods doesn't do anything. There is no user called Mods. If you want to attract the attention of the moderators, you need to use
@Moderators (the hint is, if it doesn't turn blue when you have posted your message, it isn't a tag to an actual user).
2)
@Moderators will let the 'Moderators' account know that someone has referred to them in a message. Moderators is an identity that all moderators have access to, but we need to log on separately to our normal user account. So, for example, I would only see messages or tags for Moderators if I bothered to log in separately - I don't do this very often, and I don't think the other mods do either.
And the take-home message is that if you want to attract the attention of the moderators, report the post using the link at the bottom. That's what it is there for...