How do you currently keep track of the movies and anime you've watched?

I was curious how everyone keeps track of what they've watched.

Do you use IMDb, Letterboxd, MyAnimeList, Notes, Excel, or just rely on memory?

I'm asking because I'm designing a website called TrackVerse. It's not a streaming website—it's a personal movie & anime tracker where you can organize your collection, create wishlists, keep favorites, log your watch journey (when, where, with whom you watched it), and even explore your friends' collections.

Before I continue working on it, I'd love to know:

1.What do you currently use, and why?

2.What do you like or dislike about it?

3.What's one feature you wish these websites had?

4.Would a website like this be useful to you, or would you stick with what you already use?

I'm looking for honest feedback, even if you think it's a bad idea. I'd rather know now than after spending months building it.