As of now it appears that there is a strict priority over the titles being generated according to the number of user posts. I like the titles but I'd like to also assign special ones to whomever I want and not have the system add the automatic one as well, i.e. similar to version 6.
I agree.
Since version 7.2, post based titles are forced upon the user at every post. If you change in the database, it gets reset right away by ubb on the next post.
This gave us a little of a headache, since we used that field just for custom membertitles. They were all reset to junior member (the only post based member title we have, when they have 0 posts

) as soon as they posted.
For our board the fix was easy, kill the code in addpost.inc.php that updates the membertitle.
I am thinking about moving over those membertitles to the custom membertitle field, and give that custom membertitle field a default "Junior member" and empty out the post based ones. But have not tested if this will give an empty line.