That’s a great idea, I’ll do this too.
Having also worked somewhere that was under GDPR, weaponised bureaucracy like this can really be used to consume staff resources.
Edit: it looks like Reddit have changed their data request form. To make a full GDPR request, with the additional data in the template, you’ll need to email your request to Reddit ([email protected]).
You can not only request your data, but also request information regarding how your data is processed and also about psudo-anonymised data. These are much harder to automate a response to.
You could consider making a data request first and after they respond, make a deletion request when you’d like your account removed. This will use even more resources.
If they do not respond to either the data request or deletion request (or do not fulfil these requests fully), you can make a complaint with your local data protection office or the one Reddit is based in (maybe Ireland?). Make sure you invoke GDPR using the correct language for your request.
Here’s a template letter of how to do so under GDPR. You must request your data or the deletion of you data using the correct legal framework (quoting the correct legislation) and these templates make this easy. Plus they cover more types of data than just your posts and comments.
Really depends where you are, in temperate climates the grasses in the US tend to be European, but in hotter climates these can be from hotter places in the world including Asia.