Check through this post. It may help clarify things a little. Or maybe not.
But an old post from months ago is not going to get warning. If it did get a warning, the warning would be overturned down to a modnote probably and an apology.
But modnotes note really have a time limit, but rarely would this happen.
Mostly, this whole thing was caused by …
Finally, stop misgendering is a good note. It needs to stop as that is a board rule.