I would if I had any idea how to get a video clip of myself onto the computer.  I'm not totally behind genarr's idea, but about 80%.  If you're a plifter, prove it in video or shut up.  If you're a bber though, as long as you're not boasting really impressive numbers you aren't required to prove it.  I'm 185 right now, in a few weeks I'll be over 200lbs.  If I saw I can bench 315 for 5, at 200lbs... that's easily believable.  Now if I say I can put up 405 for an easy double at the same weight, that requires proof!