somewhat related, one time someone mentioned that reddit’s analytics runs off the main domain such that one wouldn’t be able to block analytics without blocking

somewhat related, one time someone mentioned that reddit’s analytics runs off the main domain such that one wouldn’t be able to block analytics without blocking the site and its content itself. does anyone remember the comment or article that mentioned it? it seems like this tactic will be increasingly useful for companies whose revenue is entirely ad dependent. somewhat related, do any ad blocker extensions block POST/PUT but not GET?