What does reddit know about me? How do these modern companies have more information about me rhan I provided

The only information I give reddit about myself is an email ID, which can be disposable. And I believe they log IP access data?

- I provide email data.
- They keep IP access logs (which itself can give away alot of information

Now, I READ bitch tech giants DO strip EXIF data from files I upload but store all of it! Like this is crazy.

- EXIF Data from my files.

(How legal is this? Can any random startup …

companies information privacy reddit