“Hi Reddit, I want to make use of my legal right to delete my posts.”

“Lmao no do it yourself.”

Here’s a template letter of how to do so. 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!

https://www.datarequests.org/sample-letters/