useless onlinethumbnailcache folder

Why does the game generate all these ugly and useless “catalog_thumbnails” in the “onlinethumbnailcache” folder? Depending on how much you use CAS, there are hundreds of useless files in that folder. Every time you quit the game, you have to delete them, for crying out loud! All these files unnecessarily bloat the game. Since they can’t be used with the ugly background, they’re pretty useless to the player and just more unnecessary junk.

This is just an example of 100+ icons and what they look like:

And FYI: The EA forum server is running terribly slow and might be overloaded, since it takes forever for the login and forum pages to finally load. After the login page finally shows and being able to login, it takes another 75 seconds to open the next page or any other forum page. Thested in Firefox and Chrome.