I hate it when paths are clearly marked as 'bike path only' yet people see it as a multi-use path and then give you dirty looks or won't move out of the way when they see you coming on your road bike.

And yes, I do believe you are entitled to your own lane, especially if there is a yellow line down the middle of it. Luckily everybody i've encountered always moves into a single file, and I do the same.

And wow...that guy from the Craigslist post...what an a**! Its people like him that give us all a bad name!