@Fathertouk

I think the main point of the OP's post was "Don't burn bridges." This isn't a great time in the state of WoW to burn bridges with players who can raid on your schedule. I, too, would try and work things out with players in my guild before simply kicking them. Trade chat on my server is nothing but a sea of what were formerly the top raiding guilds practically begging for people to join and fill their raids. I wouldn't want to come to a crossroads where I'd burned my last bridges for viable raiders and couldn't raid at all.

I'm a guild leader, but I can also sympathize with feeling a lack of progression like Jon and Bob. Would it necessarily be a terrible idea to mix up the two raids and try to progress further (assuming of course that scheduling would permit that)? I'm sure they aren't the only people in the guild frustrated by the fact they aren't progressing. While my guild has always run one 10 man, and never reached the point of being fully viable to run a second 25 man, when we hit walls in ICC, it was incredibly frustrating. Perhaps the guild leader's complaints about wanting to quit are less about listening to the complaining and also at least partially about having hit a roadblock where there's no progression either. Perhaps they realize there's something to that complaint, and they don't really know how to address it either. In some ways, I'd be happy to deal with this - we're lucky now to have 6-7 players on at once on our raid nights, meaning we never have enough even for a guild group. We lost people to Rift and boredom with the game, even after adopting several of our former PUGs from the Wrath era whose guilds fell apart. If it weren't for them, we'd have exactly three people logging on during raid nights (or any night). We used to raid weekly during the last year and change of Wrath.

Recruiting new members isn't always the answer either, with guild level progression being what it is. Lots of people want the perks that come along with a Level 25 guild, and for smaller guilds, if you don't have those, they're going to pass you by. It may be the guild in question isn't in a position to compete with the benefits other guilds have to offer too. So again, that's more incentive to maybe work with the complainers, and see if there's a mutual resolution.