A: Can it automatically hide pagination pages? As some examples are:

newssite.com/general/4
newssite.com/politics/4
newssite.com/sports/4
newssite.com/tag1/4
newssite.com/tag2/4
etc. etc.

It will be very annoying if I have to manually enter all category/tags url's in order to disable all pagination pages from showing up.

>> yes you can use our Exclude Keywords for this.
https://support.visualsitemaps.com/en/articles/2912531-how-to-use-keyword-filters-for-urls

And what are the options for websites with over 3000 pages? Any options to top up this limit with a one-time payment instead of a recurring subscription? I won't overuse and the 30.000 per month page limit is more than enough for me, but I rather use it for 3 websites with lots of pages instead of lots of websites with not that many pages.

>> Today we have a hard-limit on each sitemap @ 3k pages. This is due to the technical memory limitations of browsers today, anything more than 3K generates severe performance issues and at times crashes. We naturally need to solve this challenge with a completely different approach to how we load/show the nodes. We have some ideas to poll 3k at a time ( kind of like a pagination ). But no ETA on this yet. You can upvote and follow this enhancement here: https://trello.com/c/zqOVNbpv