I've been a long time vintage collector (25+ years) in addition to "lurking" here for a few years. Here are some reasons I don't post much:
-I have never participated in an auction house auction
-I rarely bid or buy anything on ebay any more
-I hate slabbing
-I don't care to be caught up in "drama" as others previously mentioned
-I don't have the budget - or the desire - to buy high end cards
-I could care less about card alterations...
-...or whether a card should be a 50 instead of a 40 - many of mine are trimmed, torn, burned, written on, creased, punch-holed or otherwise tortured...and that's the way I like 'em
-I prefer to remain somewhat anonymous
As you can see, I can't really comment - or choose not to comment - on many posts here. I do appreciate those who post neat cards (like Leon's D311 Danzig) or do research projects (like Brian's E121 quest). I also appreciate the many quality cards and impressive collections I have witnessed through this board.