lol - You should actually do research instead of reading FUD.
By the way, that problem affects all storage media, not just SSDs. It has to do with how the filesystem "deletes" (incase you didnt get the quotes, thats a hint) its data.
When you fill up a drive, obviously there's data there. However, when you go to remove it, it isn't actually removed, the filesystem, not the storage media, writes a 0 in its place instead of removing the data itself. Which is all fine and dandy untill your entire drive is like that. Now, when you go to put a new file on, the storage media has to find a block of data applicable for it, remove all of the "deleted" data, and THEN write to it.
It affects all drives with the same level of performance decrease, and it's not even that much. People ignorant in how harddrives and filesystems actually work
If you really want to fix it, do a low level format on your SSD or HDD every time it gets "full", or wait for Windows 7, which will actually remove the data when you go to delete it, making the next write to that data block much faster..