The URLs of the boards pages are not visually pleasing for users and for search engines. By default should be the same as the pages of threads (.../?pageNo=2) without search filters and only with page number.
Visually users must decipher the contents of the URL in order to understand. And for the webmasters is very difficult to control the URLs in the search engines.
For example (the same page with different filters indexed by Google)
Does it make any sense? for developers maybe, but no for users and webmasters.
This creates duplicate content and duplicate links. It is also very costly to manage all the URLs in the webmaster tools of the search engines. Google should only index the standard page (.../?pageNo=2) without filters.
You can check the attached image. It is a one example with Google results. You can see repeated the same page with different urls.
[The domain has been edited to not associate my 'personal' nickname with this web]
Please consider this.