There is no limitation on the amount of users… There are some great plugins
that would help you manage permissions and limitation you might want to empose
to avoid problems..
Tip: Aritcle writers should a writer user level
- Email Users Plugin – This would help you send email to all users in one click.
- WyPiekacz – A very good plugin! would help you set a minimun post length, maximum amount of categories and tags and more..
Hope This helps,
Sagive