Bugs in databases while in one component can be crossreferenced to other components. For example: evangelism > documentation would be a crossreference for documentation > developer.

I'm not sure what you mean. You want the components to be identical?

Currently, there could be multiple paths to a component just like there are multiple paths to a website in a search engine such as dmoz.org. Search engines solve this problem by crossreferencing from say computers > internet > WWW > editors to computers > software > editors > HTML. I would like to see the same possibility in Bugzilla. If it is already there I haven't seen it used.

Hmm yeah, why not. This could come in handy in certain situations where you have common components between projects.

It might also be useful to create a Bugzilla API that could allow Bugzilla to send reports to other Bugzillas. For example if I went to Caledar > libical then it would actually file the bug in, if they used it, Bugzilla for the external libical component

See also bug 43940, "Component trees".

Reassigning bugs that I'm not actively working on to the default component owner in order to try to make some sanity out of my personal buglist. This doesn't mean the bug isn't being dealt with, just that I'm not the one doing it. If you are dealing with this bug, please assign it to yourself.