Usually we add quite a bit of description for our events, like this:

{{{
Weekly meeting to go over QA related topics (Release criteria, testing status, test days etc). Specific agendas are sent out on test-announce@lists.fedoraproject.org.

Join us at #fedora-meeting on irc.freenode.net
(For help with IRC, please read IRC help page).

Meeting logs and some general information can be read on Meetings wiki page.

}}}

However, the 'information' text area during event creation/edit is really small and I need to resize it every single time I see that dialog. Even if I don't want to edit it, I want to review that we have the correct content there.

Please make the text area much larger by default. It could also additionally expand when focused.