Pretty easy to maintain a significant degree of anonymity by just deleting your account and making a new one.
With that said, most users are more concerned about being anonymous to their peers in conversation than they are to Reddit's administration itself, IMO.
Think voting patterns, date/times active, submission categories, comments, writing style, punctuation ...
Facebook had a project to cross-reference user behavior to anonymized medical data. Say patient A's history says he visited a foreign country in the Mediterranean, came back with the stomach flu, was hospitalized for 3 days ... Maps to: holiday photos, dates, locations, status updates, friends commenting get well soon etc.
I hear they were pretty successful at it too! Makes you think what a government actor can do with enough data.
People generally don't seem to appreciate the relationship between marginal information and statistical likelihood. ~87% of Americans are identified by DoB, zip code, and gender. That was about two decades ago. The state of the art today is going to make Cambridge Analytica look like the Post Office when it gets pulled out of the shadows.
No you don't. You can leave the email box blank and sign up with no problems.
Just to be sure I just tried it via iOS Safari and signed up for a new account by entering a username and a password. Left the email field blank. Works like a charm.
Almost no other input flow allows you to hit “next” when the only form field hasn’t been addressed yet. Why not put username, password, and email on one page instead of splitting it up the way they do? Then you can mark the two fields as required and the third as optional.
I’m sure Reddit has code in the back end to track people, but afaik thanks to Reddit’s general lack of ads, there just aren’t a ton of DMPs, so there aren’t a lot of data points to correlate with.
That said, using accounts with throwaway names will keep you pretty anonymous on its own.
P.s. Facebook doesn't sell data. It sells ads, targeted using the data it holds.
The distinction isn't a minor one, but in this context it doesn't much matter. Reddit is unlikely to have the kind of quality data that facebook has to sell - directly, or indirectly.
(Note, the Cambridge Analytica stuff happened in 2013 when Facebook was much more open with APIs using their data, since popular demand at the time was for FB to be less of a walled garden)
It's a different kind of data. Spez claims to know his user's "dark secrets" and that can be an ad-tech advantage for Reddit. [1]
[1] https://thenextweb.com/socialmedia/2016/05/30/reddit-knows-y...
Are you sure there? Anonymity doesn't really exist anymore on the internet for the average person. Reddit has the illusion of anonymity which gives its users a false sense of privacy so they can act the way they truly are (parallels to Westworld if you watch the show).
It would be incredibly easy for Reddit to de-anonymize its user base, the same way Facebook was trying to do with medical metadata, and sell that info (at least for the US users, given GDPR in EU now)