You asked for thoughts, so here are mine in no particular order. If you want to ban me after this, there will be no hard feelings. Its your board and I respect your right to do as you please.
I don't think an ad-supported site would be so bad. I know I'm in the minority, but I've visited other VBulletin sites (some non-sports related) with ads and its not so bad. I'd urge you to consider the idea. Another idea would be to promote varied SN merchandise. I might be tempted to put one of those magnets on my car, or buy a coffee mug or something.
I came here around 2008 or thereabouts when the Trib's board (free) shut down. This board was recommended by the Tribune staff in their closing message. I figured that donators got special priviledges (as they should) and non-donators got fewer bells and whistles. As someone without much disposable income, I chose not to go further into debt with a monthly credit card donation. Not that I don't appreciate the time folks put in, its just that internet fees are not high on my priority list. That is the most personal financial info. I will reveal on an internet discussion board in front of strangers. Until very recently, I've felt welcomed here. FWIW, I thought one of the coolest features of this board was the karma feature. I developed a personal policy of giving karma to any post that made me smile or laugh, and made sure to give out at least a few karma hits every time I logged in.
One thing that bothers me is when people imply that this site is going downhill, or isn't like it used to be. I think they're wrong. This site is as good as it ever was since I've been here. Maybe not as many posters, but great nonetheless. Sure, people with thin skin have left, but **** them if they can't take the heat. It's a freaking message board, not the center of your life. Certainly not worth getting pissed off about. A message board should be a diversion...a change of pace...somewhere to chill to escape your real life for awhile. Not the center of your life where someone goes off on you and you feel you have to leave.
If you want to make this a subscribers-only site, I'll find somewhere else to hang out. I'll miss the humor, and the handful of posters who crack me up almost every day, but I'll get my Steelers fix somewhere else if need be. But please consider the ads and merchandise idea.