I only get around 20 (Optimizely, Google Tag Manager, Google Analytics, Perfect Audience, Hotjar, a bunch of ptEngine), I think you must also be blocking twimg.com which looks to be Twitter's avatar CDN, and those extra blocks are the attempts to load avatars in the comments.
Interesting. I'm using uBlock Origin with pretty much all 3rd party filters enabled, and only have 19 requests blocked. Would you mind sharing what tools you're using?
Block `twimg.com` and see the count climbing to over 460 -- because of the avatars in the comment section. Personally I block such ubiquitous hostnames by default (using uBO's dynamic filtering), as they are as good as trackers (for Twitter in the current case).