I see. See, the reason I was asking is that, observing the Touhou board at pooshlmer, it really slows down every Comic Market and 503s start popping up. I don't have access to the stats (and the admin apparently never checks his email, so I probably never will), but the posting doesn't seem to pick up that much, so I figured it might be because there are more hits (which is the reason that everyone cites, though their source on this seems to be hear-say at this point) thus my concern about load. If it's not that, then what problem are they actually having and how does one prevent that when a small bump in traffic happens? My bad for assuming to much.