What I think is more important than the decision whether users are allowed to use pagination or not is letting the admin set a maximum value for per-page entries therefor users cannot exceed the bandwidth in large topics by setting posts per page to 99999999 or whatever.
Also nice would be sth. like a mix of pagination and ininite scrolling by enabling infinite scroll for each page, therefor you can easily paginate to the last page (in many circumstances nice to have) and within each page you appreciate infinite (until the pages end or even update the navigation to sth. like
1 | 5 | 6-8 | 9 | 42) scrolling