I'm still in my first year here so mine isn't bad (plus I'm a slow watcher) but sometimes I see others' watch lists that are so. much. scrolling. Parts of the site don't scale and can become hard to navigate far too soon, like custom lists.
Don't know what I'll do in a few years. I can see myself managing two accounts, or maybe an offline spreadsheet instead. One as an overall record/memory aid, only used when I finish something, and another as an active account.
Good luck figuring out your solution :)
