It would help if they were reverting personal information. You have a right for them to remove any data about yourself. E.g. if I have Reddit my email address and date of birth and real name. Then decided to leave Reddit. They would have to get that data off their servers (or they can't operate in Europe) some companies also need to keep that data in a EU data center not US to keep compliant. just saying "script reverted it" isn't going to save you. Hell we have to be very carefull to wipe it from preprod environment as well (and never store their data in SIt (without irreveesable flipping the personal details)

However the content itself, if cannot be tied back to the person can stay as is. Of course if you have written in your comment "I'm bob Roberts from robertsville and I run bobs grill" that comment has to go so most sites would rather blanket delete. However if you post a guide to grilling that is not personally identifiable then Reddit could keep that data up