Hm. I dunno. That's the thing; he's almost as much a force of nature as he is a person. His general approach is supremely atypical to average humans. So maybe it's good the name doesn't sound like a "person".
What do you want me to post? 10th Division officers busting in and dragging Yoshi away in cuffs? I'm not saying there won't be questions, but i"m not just going to suddenly have him arrested. Besides, that's what his hard proof (security footage, eyewitness accounts, and so on) is for.