After revisiting the structure of my website after several years, I'm finding more and more absolutely useless stuff indexed. I want them deindexed and claim back the link juice and crawl allowance.
An example, new user signs up, it appears in the timeline with their username hyperlinked, Google follows this to their empty profile. That then links to several empty pages, where their content will be, should they create any. Of course many many users don't.
I've now un-hyperlinked the username in this instance, removed the links in the profile if no content exists and I've added noindex, follow to the proceeding pages.
I hate using these tags, just as I hated using nofollow way back when. But sometimes, it seems necessary.
Is their any downside to what I've done with the noindex, follow? Is Google likely to give a crap that I've just told it, that it's not to index half a million pages?