If a user has made enough edits to articles that they
are able to move
pages and edit semi-protected pages, they have contributed enough that
they should be able to create a userpage. Userpages should be reserved
for those who are writing the encyclopedia; WP:NOT a webhost.
I think this would have unintended negative consequences. When I register
an account at a new Wikimedia project one of the first edits I make is
usually to my userpage to let people know where I'm coming from and where
I can most easily be contacted.
In my experience we don't have a lot of newbies starting out with building
a userpage. Typically the people who build a userpage early on are
veterans from another Wikimedia project. Take this contribution log as an
example I happened to notice:
http://en.wikipedia.org/wiki/Special:Contributions/J%C3%B3na_%C3%9E%C3%B3ru…
This user is an admin at the Icelandic Wikipedia and her main interests
are probably to contribute there. She registers an account at en to add
interwiki links and make some incidental useful edits. One of the first
things she does is to build a userpage with a bunch of userboxes.
Now, some of those userboxes I think we could do without. But I don't
think it's accurate to say that contributors like this are "using
Wikipedia as a webhost".
Regards,
Haukur