Stack Overflow bans users en masse for rebelling against OpenAI partnership — users banned for deleting answers to prevent them being used to train ChatGPT
There was similar things done on Reddit during the big exit. I doubt it achieved what people expected it to achieve. Even if they’re not visible externally, I’m sure they can easily access (thereby make deals to license) the data out of their backend / backup; just a matter of how hard they want to try (hint: it’s really not very hard).
Yeah during the reddit exodus, people were recommending to overwrite your comment with garbage before deleting it.
This (probably) forces them to restore your comment from backup.
But realistically they were always going to harvest the comments stored in backup anyway, so I don't think it caused them any more work.
If anything, this probably just makes reddit's/SO's partnership more valuable because your comments are now exclusive to reddit's/SO's backend, and other companies can't scrape it.
It was to make the data inaccessible to general people, therefore removing the reason people visit reddit. Even if reddit could still get the data, regular people would be inconvenienced (in theory) and look somewhere else.