Your logic makes no sense. How do you become "inoculated" to what you don't experience?
The point is that I do experience it, so I know how shitty these sites are. If you don't experience it, you are inoculated, because you are getting a false impression of them.
Slashdot has gone to shit, although the Facebook stuff is only one factor. I used to visit Slashdot nearly every day. Now I visit slashdot less than once per month. The social media rubbish isn't the only factor, but it is a significant one.
If you're blocking all of that, then you continue to support Slashdot more than you should. If you dislike the advertising and social media stuff that Slashdot does so much that you need to block it, then why do you even visit the site?
To me, slashdot has become a last resort to visit when I am extremely bored. I find the social media stuff annoying, but not nearly as annoying as the sites that want to promote weight-loss programs or bogus dating sites. If you're blocking ads and visiting those sites, you're not seeing the true horror that's out there, and you are unconsciously supporting some horrifically selfish assholes.