most ppl posting here got it in the $500-$1000 range.
Just the newest noobs who didn't discover Bitcoin until last autumn. Judging by the number of low-activity posters, you could be right though.
Of the about 2.2 million bitcoin owners now, only about 0.5 million can have bought in at <$300. The rest have joined in the last 4 months.
I wonder if more than half of the forum members have joined since the start of October.
We now have 252k members, of whom 100k has joined Nov-2013 or more recently. Source: public memberlog.
The forum membership is not growing as quickly as bitcoin, since there is less and less reason for lurkers to join in the discussion. (And unfortunately less reason for present members to contribute. Or lurkers to lurk.)