I'm now converting the videos from this year's YAPC in Riga and a number of them will be published this year (even before Christmas :-).

There's nothing bad if the speaker does not want the video recording to appear online, but I would like to say strict no to any prohibitions I found on the recordings this year (and there were similar bans last year in Pisa). I would not like such talks to appear in the following Perl events.