The problem is the OP said "against running regularly" and the responder said "excessive". Neither "regularly" nor "excessive" were well-defined. Regular could be anywhere from 2-3 times a week to daily. Excessive could be anywhere from daily to many times daily, and probably is more about time/distance run than frequency of runs (daily 1 mile runs would be hard to consider excessive, but daily marathons?).

Defining our terms is critical in conversation (and something I probably need to work on as well).

> The person you responded to never said that exercise is bad

I never said that they did. Who's jumping to conclusions now? The person I was responding to clearly has an axe to grind with running specifically, and the most likely reason is that they prefer something else. I see that a lot from lifters and cyclists especially. For some reason they feel a need to explain why their choice is as good as running, which is in itself interesting. I don't see swimmers (for example) who feel compelled to explain why their choice is as good as running. Nor do I see anyone trying to impugn exercise in general (because that would be stupid).

I don't know what sport/exercise that person prefers, though, because they didn't say. It would have been nice if they had, to balance out the relentless negativity. When one casually equates "regularly" with "excessive" and then lists only negatives, it implies an overall negative. Identifying a basis for comparison might have been enlightening instead of offensive.