A news outlet can hire scientists to call out shady scientific paper, many scientific paper have obvious bad conclusions, or not following basic scientific rules, that can be detected even if the scientist reviewing is specialized in another fields.
Open a tab, login to your account and go to your account page aka reddit.com/u/usernamehere (you likely need old.reddit version of your account, its all I use). Install tampermonkey and the script into that… It will iterate through your comments, overwrite them, then delete and refresh the page as it goes.
Change the line here:
const age = 7
to
const age = -1
To delete all comments. You can adjust that number (in days) to how old you it to filter for comments.