"Will someone pay you to publish your work" is a much stronger filter than "do you put your work on your website".
(I write this as someone who has written a lot on my website for free and not published anything in a paid forum.)
(I write this as someone who has written a lot on my website for free and not published anything in a paid forum.)
Despite that, the simple fact that I choose to self-publish - or rather, refuse to permit dead-tree publication - is regarded as making me non-notable.
There are lots of wikipedia articles about dead-tree writers whose work is arguably far less notable than my own.