First off, let me say that I think the WP MU project is great. It does exactly what I want to do, and I'm really looking forward to using it. (After a major bug is fixed.)
With that said, I'd like to give some feedback based on my experiences the past few days.
Briefly:
1. Searching is difficult.
2. Bug tracking and subversion access is non-obvious.
3. Show-stopping bugs.
More info:
1. Yes, I realize there is a sticky at the top of the forum which gives a better search link. Unfortunately even that interface does not seem to work very well. Limited numbers of search results and unsophisticated searching options (cannot search by forum, etc.) lead to a less-than optimal search experience. This leads to confusion, redundant posts, and frustrated users.
2. I did not see anything in the FAQ or stickies concerning the bug tracking database. It is in the README.txt, and in many posts if you do a search, but I believe it would be beneficial to have a list of all of the major links (bug track, wiki, subversion) available in the FAQ or other prominent area.
Also, based on the responses from the developers in many posts in the forums, I think it would be beneficial to post prominently the fact that the developers expect people to use subversion or copy/paste code updates to keep up with security issues and other bugs.
3. The current release includes a bug or design flaw that allows for redundant data in the wp_x_options tables, and who knows what else, honestly. (I downloaded the zip from the front page, then downloaded the latest trunk from the svn repository. (Per a "diff -r" the code is identical, so I'm not working with an old version.)
This bug results in very blatant data errors on the front page of the site from day 1 (ie, My Weblog, My Weblog, My Weblog, for every blog title, instead of the true title).
This bug is in the bug tracking database, and posted in several different forums. One of the developers has posted a partial fix to the problem, but then goes on to say "The tables need a unique index to prevent this in the future." (http://trac.mu.wordpress.org/ticket/354).
To me, it sounds like the partial fix will not prevent innacurate settings, which means this bug is a real show-stopper for me; it's the only thing preventing me from going forward and using WPMU with a project. If users (and even the admin!) are unable to reliably set options, the whole system is rendered useless, IMO.
Please, don't tell me this is an open source project blah blah, do it yourself if you have a complaint, blah blah. I understand the realities of a volunteer development team, and I have used open source for many years, warts and all. I also believe that the developers should be open to constructive criticism, and that's all this is. Please take my points under advisement.
Thank you for understanding. And thank you for your efforts on this project.