Is there any real use for the Tag Cloud since you can't add your own text? I mean, are the search engines going to pick up on the words "members" "forums" "welcome" "avatars"? Stuff like that? Any help would be appreciated!!!
The tag cloud picks up anything from users' posts. There obviously is going to be mundane and less interesting words, which you would remove, but the words used the most by your users would show up in the "tag cloud".
There is a place where you add tags for search engines to find, but the tag cloud has nothing to do with anything outside your site. The tag cloud is just an interesting tool to see the most commonly used words on your site, which links to the posts using said words.