If you really want to hit them, just make a concerted effort to request GDPR data for your user. It’s perfectly legal, it costs them time and money, and it may also actually benefit you to know what kind of data reddit collects about you.

At some point, it may even become a nice tool, say if someone creates a way to import that data into e.g. the fediverse or tilde or something similar.

For anyone interested, this is the page: https://www.reddit.com/settings/data-request. Just log in, select GDPR and request data for your “full time at Reddit”.