I find skill level to be a major factor. Good rollerbladers generally don't have a problem with skateboarders, given they're not douches, and the same to be true for good skateboarders. I think it's once you reach a certain level you learn to respect anyone out doing what they do and that we both deal with the same shit (busts, capped spots, destroyed spots, etc). But that spot it was like, hella people would be there and skateboarders and rollerbladers would all be seshin' all be cheerin/clapping for each other and it was just a dope vibe.
skate has only enhanced my knowledge of skateboarding and thus, i can tell when dudes are rippin it and give credit where its due. knowledge is power. Hence why i like to post rollerblading videos here, despite the fact that none of you probably care.
anyways. enough thrread jacking.