I like the 'followed threads' feature and the new forum filters is definitely better then before for promoting activity. But, if I could make a couple minor suggestions.
I think the trading forum needs to be re-organized with the new filters in mind. Previously, everyone would post their binders in the general trade forum. That area got a decent amount of traffic as it was due to this. Now, you see all the subforum posts mixed in with the trade binders.
Also, I still think you should reduce the total number of forums slightly. For example, when it comes to like 'general' discussion forums, so what if there's a politics thread and a video game thread in the same forum. The thread titles provide the organization in those cases, and it gives greater cross over posting between them having them together. It also makes the main forum page look less overwhelming to a new poster.
Same for things like the Magic online and Magic workstation subforums. Just make an 'Online Magic programs' (or whatever you want to name it) forum.
I'd like to point to MTGSalvation as a comparison. No offense intended, but obviously they are a much larger forum. Barring all the subforums for each format (vintage, legacy, standard etc..) that they have a similar filter to here for and FAQ/Tech support forums to talk to the mods, which adds a lot of forums, we have roughly the same number of forums as them. At the moment I'm writing this, they have 2566 users logged in. Dunno how many are logged in here, but I'd imagine it's not even a tenth that amount.
They didn't get that many forums until they got big enough that each forum required multiple subforums to reduce clutter. Now, a lot of posters hang out in just a certain subsection of their forums (i.e. standard competitive or market street) and hardly post outside of that area. It's like multiple different forums in one.
What I'm saying is, your organization is great, but a bit overkill for the current level of activity on the forum. The less there is, the more often people post in a given forum, which is more likely to give
an impression of a larger community, which in turn fosters more people to stick around, which promotes growth..
Another example, from a MMORPG forum who's owner/moderator hosts mtgsalvation as well
, is www.fohguild.org/forums. They have 1971 users logged on at the moment, and maybe 18 total forums. If you go to their general forum http://www.fohguild.org/forums/general/ you'll see there is threads of all kinds in there, and 10 of the threads have multiple posts within the last few hours. If I'm going there to read the magic thread, I might notice a thread title that catches my eye that I wouldn't have otherwise seen if it was in a different subforum.
I don't mean to harp on this, the recent changes are definitely great, but I've been involved with quite a few forums over the years, created some, moderated others.. and it's a very common concept for the successful forums. They start off with less forums funneling everyone together and only add subforums when absolutely necessary because a main one just has too much going on.
I want to see your site continue to grow and see a way I can offer a suggestion that will do so, that's all.
Enzie's Emporium (Trade Binder) http://www.mtgfanatic.com/Forum/ViewDiscussion.aspx?ID=171280
ITC Acolyte - 15 completed trades:
Rate/comment on my U/R delver deck, please. Very similar deck just went undefeated and won GP: Minneapolis! If your meta has lots of aggressive weenie/token decks, it's arguably way better then U/W, and still pretty close otherwise