They will still get site visit counts and other general metrics (page view time, clicks, etc.). When you see in a press release that they, “have X million daily page views,” that’s including everything from signed in users to anonymizing middle clients, like libreddit.

It’s the most minimal help for them possible, but not as good as just staying away. If you used to post regularly and scanning the front page twice per day will help you engage less, that’s much better than slipping back into old habits.