it seems that reddit are delaying following through with most requests until after 1 July when API requests (such as those that shreddit uses) will be blocked.
I was sooo worried about this and thinking that something like that would be done, back when i saw someone warn in the save 3rd party apps sub that u should request your data. Still i tried making a request bc i thought maybe reddit did not catch on yet or maybe bc it was before the blackout there can still be a chance, but till now i never got the data. :(
probably i'll just leave the comments and posts. I did not post a lot.