I assume that the change to icons from "words" (should read ENGLISH WORDS) is part of the overall effort to make the boards and the rest of the site more universal.
That part I could live with after some getting used to...but the last time we got a preview of coming attractions a few weeks ago...the links were not functioning and all of the admin links (and even posting links) were not showing up in one browser I normally use...and I'm sure I'm not the only one using it.
Navigation was next to impossible in long threads unless you wanted the very latest or earliest posts.
Of course, the more than year old glitch involving the PREFS settings could be part of this problem. If you can only view 10 messages per page in thread view and can't get more posts to "stick" or can't view in Flat mode...there is a problem.