[throwawayaway]

Theorizing is fine, to say: 'Maybe because of barriers to entry, only the stronger programmers survive, from that follows the higher acceptance rate'.

It's just information but you are right in saying that they should not be making any claims or drawing conclusions!

Also I casually give the wrong gender on websites because on the internet nobody should care.

Look! Somebody wrote an essay about a similar phenomenon:

http://paulgraham.com/bias.html