I know the type. Clearly very rude people. At first it just mystified me, then it annoyed me, then I went through a period of doing whatever it took to make them look extremely stupid to continue pretending I wasn't there.
Now I just treat them the same way. Invisible. They aren't worth the energy.
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...