What irritates me the most these days is how obviously unpolished everything appears to be. There are so many open construction sites, so many known bugs and flaws, so many outdated mechanics. I wouldn't know where to start and where to end if I had to make a list right away.
Every company has to make sure there's a constant process of enhancement and evolution going on, but usually you don't want your customers and the public to notice. You want to hide your weak spots and imperfection, cover the stains and patch the holes as stealthy as possible. GOG, however, appears to be 'under construction' more than ever, and there is no sign of conclusion at this point of time. Introducing email notifications for wishlist items on sale is cool, but that's just a drop in the bucket. By that rate the client, the account, the forum and the store will be fully functional as intended in 2024.