Hmm, I did the warning because it was reported in "i" chat, though I didn't see it myself at the time. When I spotted him, (or who I thought was him), I didn't see it. It was a spear/lance of some kind. I also didn't receive any further reports from the 3 players who first reported it of any kind eg "He's still doing it!" The screenshot is from that map, so it could have been from the first time. I don't know and can't tell.
I'll keep an eye out and will be visiting incognito at times so there won't be any GrannPappy warning signal.
Mokuchin, if you read this thread, the next time it is spotted won't be a warning. Fair warning.
(Also people might petition to disable weapons that should not be used on horseback from being
equipped on horseback. Game mechanics should prevent it. Until then, admins will take up the slack
)