He's a filmmaker, not Jimmy Fallon. I've meet him twice and seen him at five different events, never detected a shred of assholery, but even if I saw what was described I wouldn't feel appalled or let it shape my perception. Judge the man by his work, as long as he's not sexually harassing anyone he's a-ok.
I was so jazzed to meet him in a 2003 showing of PDL (BAM put together a little fest of 2002's best) that upon learning the venue added an additional screening of the film, this one to be introduced by PTA and PSH as opposed to the Q&A that was to follow the original screening I copped tickets to, I left in the middle of the movie to see him intro in the auditorium next door, hanging out in the back. When he finished I ambushed him in between both auditoriums and shook his hand telling him I left in the middle of the movie because I had to meet him to which he replied something like, "well get back in there and watch", which was a really sweet was to shake me off as he darted right into the theater to watch some himself. Spoke to him twice more that night, for probably a total of 60-seconds notwithstanding my Q at the Q&A and left thinking he's one of the nicest guys I've ever meet. He was surprised I had the PDL DVD early because it was a few days away from release, but I bought one at Kim's Video which always had stuff a bit early. Still own the DVD with his and Hoffman's sig.