I would love to say first of all, that I absolutely love this site from the users to the layout. So if I'm stepping out of place here, please forgive me. I'm really, really sorry.
I did notice a bit yesterday and a bit more today though, that a lot of users often post with very vague tag usage. For example, this great post here is tagged as both #f1 and #motorsport, two tags that are very specific. What it's missing though is a more general tag, such as #cars.
If we take a look at this post we see it's tagged with #putindidit and #russiaid, two very vague tags which I doubt will be repeated anytime soon unless they somehow become a community meme. Personally, I would have tagged it first #news and then #russia
I understand the mechanic on this site of following people and that if I follow someone who has the same interests as me and they happen to share one of these posts, it'll end up on my feed. However, as time goes by and this site grows even more (man, look at that Reddit exodus I accidentally became a part of due to timing), it could become really easy for subjects people might be interested, and new users they might be interested in following, to inadvertently miss their feeds due to people using tags that are a bit too esoteric.
With that in mind, I think it might be a good idea for people to use for their first tag slot for something very general, and their second tag slot something specific. Heaven forbid that additional noise drowns out something I or someone else would want to see.
As an aside, I did notice this morning that I now have the ability to suggest tags for threads. I'm a bit afraid to use it because I don't know if it's a one shot deal like badging a post. Could mk, insomniasexx or thenewgreen fill me in on how that site mechanic works?