Finally figured out what BUMP means!

Herownself

Do I get off the short bus now?

ajfrench

I've been trying to figure it out for weeks. I'll keep driving the bus.

Herownself

If you reply to a post, even by just saying bump, it stays in your "My Topics" section under community. That way you can get back to an interesting post later. Does that make sense?? At least that what I think it is for.