*bump*
LOL I'm just kidding. It does get really annoying, especially when:
a) It's not a big deal and the person bumps every 5 seconds
b) when someone else bumps your thread when you don;t want them too! I've had that happen a lot on my contests.
If it's an Emergency and no one's answered after an hour or so and someone's bird is dying then I think it would be OK for someone to sort-of-bump-while-also-supplying-their-best-guess.