It happens mate, same as i said previously, unless you have been that speed, they dont have a clue what to expect with it. Its a shame it comes down to that in the end up.
To some extent you're correct. I've never been a fast player, barely even average speed wise to be honest, so I very rarely call anyone a cheater, almost everyone is faster than me, how can I be sure? I have however played for a long time, as have many and have played against and with some of the 'fastest' players on various servers. Never before had I been hit in the manner I was during that fight, of course that doesn't mean he was cheating for sure, but to put it all down to the fact X player has never been Y players speed is not and should not be the reasoning as to someone having not cheated.
Unfortunately, in my opinion speed has contributed to the downfall of mir. Yes it's an old game that is outdated, but it still does have a reasonable core of players, that could be larger imo, but due to the necessity of being the fastest and large amounts being unable to optimise their systems as well as others many either turn to cheats or quit.
The fact that XP is now so outdated, yet running mir on it with ACPI gives such an advantage is something I can't wait to see the end of with these C# files.