I didn't, because I follow common sense (and information is ridiculously spread out in different areas). Apparently I didn't follow the rule one time (who knows when or how or what) and was warned for it. I'm not one who gets warned very often so I really don't mind the warning. But if you want someone to learn from a mistake, it's generally advisable to inform them of what mistake was made.
If you'd rather pile more workload onto Meow, then continue not letting people know what post they're being warned about. One click, a ctrl+c, and then a ctrl+v is more work than having one of your admins researching why someone was warned? Seems on par for the common sense displayed.
I don't ever recall going off topic or opining in the ban section, hence my confusion, and request that future warnings get a clarification (maybe a link to their post, or the thread). I'm sure the user can figure the rest out from there.
But it's c-rpg, if the players aren't trolling the dev's and admins are.