Less boards is precisely what I'm advocating for.
Let's take a quick look at the 1.1 board for an example of what I mean. Out of the first page, 25 items, that takes us back 4 months. Clearly this is not a hugely in demand board.
Of those 25 topics:
4 are stickies, 2 of which date back to 1.1's original release era, but clearly these aren't going anywhere.
4 topics moved only this week to the 2.0 board
2 topics resurrected from years ago and locked
2 entries that don't specify a version and could legitimately be either 1.1 or 2.0
2 entries that are upgrade topics
3 entries from a user who won't upgrade at this point
2 from a user who was going to be upgrading but had a couple of questions, potentially, pending the upgrade
Doesn't exactly sound like the board is thriving - and if you consider it, more posts *should not be in that board* than the ones that were posted in that board over the same timeframe. That's a pretty good indicator that it's time to retire it.
Shockingly if you give people fewer boards to post in, they will be more likely to get it right.