I think most people would say that it is a HUGE MISTAKE to forget your hole cards and/or failing to check them then muck like he did. His mucking was very "bad judgment" and directly attributable to his "ignorance" of what his hole cards were and/or to his "inattention" to what the board was or when looking at his cards. Seems to me that what happened in this case fits perfectly into the
actual definition of mistake. You don't get to short cut or modify/tailor the definition to exclude the items you can't address as part of your stance. I'd agree with the items you noted as being mistakes in poker specifically, but the definition doesn't stop there.
I'd laugh at anyone including Phil Ivey. I think it was an incredibly stupid thing to do as well. But speak for yourself about the playing poker; I want people like that at my table.
Good, you actually got my point. Assuming my claim was actually absurd and one with which you vehemently disagree with, if I would now continue to argue it by modifying definitions and making other random claims then maybe you can actually see how that would look from the a rational perspective.
Oh, and on a side note, we actually do get a lot of noobs that come in spamming their post counts with complete crap in hopes of getting to 65 posts so they can try to get into our freerolls. We not only delete crap postings on a regular basis but we have also had to actually ban members for repeated crap postings that wouldn't heed a warning or infraction. So while it might not be true in your case (and I wasn't actually accusing you since I haven't reviewed your posting history yet

), it is actually a very real issue that we need to deal with.