I deleted mine 2 years ago, and definitely followed through on it. Once it was done, it was absolutely zero problem to have it out of my life. The only thing I’m curious about though, is what would happen if I try to login again. I’m terrified to even try, for fear that somehow it wasn’t actually deleted even though that’s exactly what I did.
Update: I decided to finally try logging in and thankfully it said it could not locate an account under my email. So I guess that's a good thing. I do wonder if it triggered something else though, just by my trying to login.