What ever happened to "on your left"

[TsPoet]

This may be an unpopular opinion here, but I don't feel that hard core cyclists/triathletes belong on MUT at peak recreational hours. I ride on our local trails early in the morning and there are mainly serious cyclists riding at that hour. You get to 10-11 o'clock on a nice Saturday and the pedestrians are out, families cycling with little kids, etc, I don't think we should be on the trails riding 15+ mph.

Many MUTs have posted 15 mph signs. I think even if not posted, 15 mph is implied. So, I at least agree with you.
I'm not sure, based on reading this thread, that anyone is disagreeing with you. Even at 10 mph, bikes are still faster than walkers.

(There's a guy that rollerblades on our MUT, he takes up the whole thing and he moves fast. But, he's very nice about it. On my commute home from work, he often tucks in behind me and goes whatever speed I am going. Not sure why, we only say "hi" to each other despite the fact that he likes to "draft" me. But, that's another example of an oddity on a MUT that just has to get along!)