I might get “cancelled” for this, but hear me out:
If you remove your account bad actors won’t be able to identify you unless they put in the effort. Reddit staff will revert popular comments and posts to the way they were before the Blackout. Mass-scrambling your posts and comments with a “f*ck Spez”, followed by a long chain of "A"s or whatever, annoys people who are just trying to find an answer to something on Reddit, and it doesn’t help anybody except the user’s feelings.
The preservation of information comes above some moral feeling.
Your opinion?
My opinion is that if Reddit was really concerned about the preservation of their data, they would keep their API open and encourage 3rd-party interactions with their platform.
I think scrambling your data is not only justified, it’s the correct form of protest.