|Take your negativity and piss off.|
Of COURSE I take it personally. I DO share my workouts on my Facebook. I post because I'm proud of having accomplished anything athletic, and I post because people have been moved to sign up for races or do whatever form of activity they love as a direct result of seeing my posts. (I'm not assuming, they've TOLD me this. And it's a great feeling.)
I'm not here to tell people how to work out, and I'm not here to tell people TO work out. YOU DO YOU. I'm a big supporter of that. But not if that involves you raining on my hard-earned parade.
Seriously, "unfollow" and/or "unfriend" are literally a click away. (God knows I make good use of those buttons.) I'm sorry-notsorry if you're annoyed that I wax ecstatic about the things I love, but if you can't deal with that, we don't have to be friends.