I'm going to posit that most toasts given at rehearsal dinners, etc., really don't stand up to scrutiny. They sound nice at the moment when everyone is tipsy and emotional, but a month later you're left with a video of someone you rather respect sounding like a pompous and inebriated moron.
Likewise with photos. Most photos are terrible. An even greater proportion of photos taken while intoxicated or of intoxicated people are terrible. And yet, we have them. And we feel we need to display them. Why do we do this?
Technology, of course, makes these things easier. Cameras hold hundreds of photos, and don't discriminate. Facebook just begs us to air our dirty laundry.
Certainly it's nice to have photos of good times and great people. Just...fewer.