Reddit has had off site tracking for quite some time.
Remember those little snooheads where you could 'reblog' about something? or vote on a site while on it?
Seeing the reddit bugs/icons/badges was about when the site started engaging in data collection. You bet your ass they do everything they can to determine a general profile of each user now based on visited subs and patterns.
They cannot manage a little chat widget on their website, you think they'll be able to trackbusers? You're right that they are trying but they are definitely not capable.
Re:Reddit raises $410M in new funding
by underwater on Thursday August 12, 2021 @05:40PM
(#28161890)
And now they're taking huge amounts of money, which means they need to succeed as an advertising company, which means they'll start doing many of those things.
Just at a very high level:
- no offsite tracking (so no retargeting - the follow you around the internet ads)
- no separate ad network (you can't buy ads on Reddit that show up on 3rd party sites)
- limits on how granular targeting can be (it's by sub-reddit but they exclude many based on size+sensitivity)
- no demographic targeting (you can't pitch your product to males 18-35)
- no fine grained geographic targeting (lowest they go is major metro areas of millions of people)