I think it may be beneficial for users to be able to store a tiny note telling them why they have even wishlisted some game months or even a couple years ago. Here's my wishlist page that I modified locally to show how it could look like:
For me, gg.deals wishlist seems to be a good place to keep games that I would like to play, but I may never manage to do that (because of long list of other similar, already purchased games waiting to be played and potential new, more attractive releases). Unfortunately I happened to store some games in a wishlist, then remove them because I lost idea why I personally wanted to play them.
For example, today YouTube brought me a video called "The Most Complex Ecosystem in any Game", featuring Rain World. I think that in two years from now, if I will browse through games at that time, a short note: "YT: The Most Complex Ecosystem in any Game" will quickly bring me up to speed why I have wishlisted this game 2 years ago. This note fits in 50 characters limit.
What do you think?