Question for fans who write about how good of a blocker a WR, TE, or OL is

I see a lot of it during the broadcast but mostly I find out through the content that is put out after a game breaking it down. Baldy's Breakdowns are always informative. The SSF has great info. We're lucky to live in an age where people far more knowledgeable than myself put out a lot of breakdowns on the internet. If I had to rely on just the broadcast or watching the game live I wouldn't be able to have an informed opinion.