I think this is an excellent system. You definitely don't want to get stuck on an idea forever, but you also don't want to ditch it at the first sign of trouble. Maybe everyone should have a bad idea box!

I've found it to be important to set a time limit on an idea. If I'm spinning my wheels on it for too long it goes into an "idea box" and I move onto another one. The box is literally an index card box full of cards with old ideas. If I get stuck again later or need inspiration I'll come back to that box, flip through…

I've contacted Buffer's support folks a couple of times for issues that came up. The experience was invariably polite, personable and ultimately as helpful as can be reasonably expected. Kudos to Joel and company for a useful product with a friendly support staff!