But to decide at a community level that such sites are banned do not directly affect hotseats, just the hosting site of saves and screens. I personally view it as good manners to upload to TWC as attachment or somewhere where they're not deleted at least a few months, in the interest of the hotseat, you never know when you need to check out old saves for cheating, or one wants to know how the hotseat progressed and look at battle screens. Besides the case where more than a week passed and the files were deleted and for the admin to do something the turn has to be reuploaded.
Now I started to download saves from hotseats where I admin or play in case they'll be needed next week when links will be dead.
If someone can't bother to at least upload somewhere properly, he may as well not be allowed to play, but again this is just my opinion.