Decrease in traffic can be attributed to some combination of:
1. Rise of alternate forms of social media and more targeted sites like Reddit, decline of internet forums in general.
2. Loss of high or higher profile content creators, bloom coming off Yahtzee's rose due to the simple passage of time, failure to fortify site with TNBT.
3. Aging feature-light forums missing some basic functionality.
4. Flexible and open-minded moderation...a positive...gave rise to an overabundance of politicized and shit-flinging conversation...a negative. Community split, turned ugly, and lost a lot of moderate/pleasant posters. Many of those remaining are inured to conflict, enjoy conflict, or are blatant ideologues looking to drive away the last of the heathens.
Suggestions for improvement:
1. Nothing you can do about this, really. Site probably has a certain degree of taint by association with a certain controversy as well, so it'll be an uphill battle.
2. Just keep digging for new content. You need to find another Yahtzee or three. This would probably require expenditure of funds, though, and I have no idea how profitable the site is. If it's profitable at all.
3. Embed basic HTML functionality when editing/replying to posts, it's ridiculous having to self-tag everything. Allow us to explain WHY we're reporting a post, sometimes it's nice to call moderator attention to something without implying someone deserves a warning. And some form of like/upvote for posts would be appreciated, circle-jerk accusations notwithstanding. You can avoid a dislike button for that purpose.
4. We really need to start applying different moderation standards to different forums. You have a gulag forum now. Let's a call a spade a spade, we know what it is and we know what's its for. Use it, and start cracking down on the other forums. Start nailing people on passive aggressive or generalized hostility, myself included, we get a free pass on that for some reason. You're not going to get new people involved in the forums...especially good natured, affable, low-drama people...when they're a fucking cesspool of bitching and axe grinding and incoherent yowling about the latest SJW outrage du jour. Use your gulag. That's what gulags are for.