Not in a meaningful way. It’s easy to detect and revert a change like this. Instead of bulk changing all your comments, you should slowly change them over time.

Even then, users don’t usually edit most of their comments. Sure Reddit might be naive and just take the current comments, but it’s pretty trivial to reverse this kind of thing.

Probably good to do it to make this process harder and more error prone for Reddit but I would not be under the impression that this has an impact beyond being annoying.