You don't, however, you can hide your profile from public view, then only mods could even see your profile. =P https://forum.kag2d.com/account/preferences "Show your online status"
I believe when you ignore someone, all of their posts just say: "You have ignored this forum member" or something like that. I don't think it prevents them from posting on your profile.
You will have to ask a forum admin though I'm not sure about a lot of this stuff, ask Kouji, Rayne, or FuzzyBlueBarron.
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