Called a cheat maybe in jest, but even in that context--and been otherwise snubbed.
On another running forum they are doing a sprint and middle-distance challenge, starting with a half K time trial. They set up a masters group, but a couple of 'em specifically asked that I don't join their group because I'd be too fast. This is meaningless activity and supposedly just for fun. But then one participant also said, yeah we don't want him, he cheats!
I did call them out on that, but fairly gently. I just said I work hard at running and don't appreciate the implication considering all the stuff that goes on in the sport (druggies, course cutters, bib mules, et al.). The funny irony, is that I have zero fast twitch fiber remaining and really suck at sprinting, so a lot of them could thrash me distances under the 800.