Is the setting 'nofollow' not harmfull for spidering the entire site. I mean when I am f.e. on this page https://xenforo.com/community/forums/xenforo-suggestions.18/ I see al lot of 'nofollow' on internal links, which means that the google spider shall not follow that link. For external links I understand the 'nofollow' attribute but for internal links I don't.
Same question for the 'nofollow' attribute on the 'what's new'section.