There are a couple of women who ride those things on our local trail. They even got a little write in the newspaper's fitness section.They're very slow and won't go up the slightest hill, so I'm sure the fun will wear off soon enough. They're much less of a pain the headphone-wearing-take the while trail-oblivious-to-all roller blade dude.
Nothing personal, but I kind of disagree with the general concensus.
The roadies may have acted brashly, but when passing on a MUP or elsewhere, it is the responsibility of the passer to make sure they have time and space to pass safely, not think they probably have time and space. If it's not safe to pass, wait until conditions improve. If it was close enough for you to get forced off the path, it obviously wasn't safe. It's not like you didn't know they were there. You saw them before passing.
Not taking it personally, but I DID have the time and space. Their speed, while faster than i was expecting, didn't throw off my calculations as I had allowed for error. What DID throw them off was the original intent of the post ("Do I look stupid?"). When the roadies decided that they didnt think i knew what i was doing, they turned and tried to pass between me and the person i was passing. This forced me to turn back and threw everything off. Everything would have worked out fine if they had continued their original course OR if they had slowed down had they doubted my ability to gauge their speed etc. This is why i believe them to be the problem. If they hadn't made any adjustments, things would have been fine. If they had used the rule, when in doubt, slow down till you work it out, things would have been fine. They took the worst course of action and forced me off the road. That is why i was pissed... that and the fact that giant contraptions have no place on an already narrow heavily used bike path.