I started a thread in the professional support forum somewhere around 3 years ago, I'd follow-up there but I'd have to purchase again just to comment. I was told back then making the page navigation links at the bottom of lists SEF was something that was being discussed, but it's still in the same state ie., every link looks like this:
index.php?option=com_comprofiler&view=userslist&listid=55&searchmode=0&Itemid=640&limit=25&limitstart=25
(which, when you have a few dozen pages in the list, does a horrible job of tying those links to the SEF main page)

I dug into the code to figure out where the links are generated, in the library file /CBLib/CB/Legacy/cbUsersList.php on line 511 there's this call:
$pageNav->setBaseURL( $_CB_framework->rawViewUrl( array( 'userslist', 'listid' => (int) $row->listid ), true, array( 'searchmode' => 0 ) ), true );
The call to rawViewUrl on this line is the only reference to that function that I could find in the codebase; I could have edited the function itself, but I thought it better/safer to edit the call. I changed the line to:
$pageNav->setBaseURL( $_CB_framework->viewUrl( array( 'userslist', 'listid' => (int) $row->listid ), true), true );
Which replaced the rawViewUrl with viewUrl and also removed the searchmode (I don't allow searches of members). The links generated now look like this:
https://localhost/testing/alabama-members/birmingham.html?limit=25&limitstart=25

I tried fooling with the router to get limit and limitstart incorporated in the SEF link, but no dice (I didn't put too much time into it, I can live with the above). All page navigation links work to show the many pages/people in the list, but the URL in the address bar never changes (it's always https://localhost/testing/alabama-members/birmingham.html no matter what page I'm on). I don't think that's a big deal, since search engines will be crawling the navigation URLs and finding new profiles (so it won't appear to be duplicate content).

My concern (at this point) is the unknown. I've tested everything I could, I don't see any issues with the change. Are there any drawbacks to the change I have made? If not, the only question would be is it possible to incorporate limit and limitstart into the router, so the SEF link looks something like this:
https://localhost/testing/alabama-members/birmingham/25/75.html (I might not even want that...looks ugly, but I like having the option)

Any feedback is appreciated.

Looking forward to seeing that implementation. I hack the code up quite a bit to get the system to do what I want, one less hack to do every update would be nice....