Let's be real, when an entity like Slack says "delete all your data," they actually mean they will add a flag in the database to make it inaccessible to those who aren't purchasing bulk data for data mining and llm training. The data will persist regardless.
I've been treating public Git repository commits in the same vein - a receipt of incremental changes that show that an individual can do some programming. Granted this is not fool-proof - like all things that are complex, it needs to be evaluated with a suite of other factors and conditions to be determined valid. A website written in a personal voice is one of these factors.