Yay I got RickRoll'D for the 100'th time! A thread? Seriously? Shame on you! ..you know the rules and so do I.
There is. Look for the ignore option in your user cp. It makes posts of members added by you invisible for your account.
With regards to Mong0 and his tags I globally nuked them a couple of days ago, so unless he has added more since you shouldn't find any. While I assume everyone knows this spammy tags are frowned upon and at the very minimum me and Jon can figure who posted them and remove them with a few clicks . With that in mind I must ask is it really worth the effort? Jshep yes there is an ignore command located where Aurora said, but just a warning there is a couple of people who can't be ignored so don't be surprised when you try and ignore them. And as a response to the actual thread why try and rickroll your fellow members, remember what goes around comes around...