It’s also a volume thing. By the time I reach a reddit comment thread what I wanted to say has already been said, and if I say it again my comment will drown in a sea of heavily upvoted comments. On lemmy you can be several days late to the party and still get both upvotes and responses.
Are you European? Some websites in the US can’t be bothered to implement GDPR and just geoblock all of Europe instead. You probably can’t access homedepot.com either.