Simple...
Use a client that
still allows you to disable Partial File Sharing and...
also allows you to disable the normal stupidity of the default 'Share Your Downloads Folder'...
Only idiots defend the sharing of files that have not yet been tested/vetted...
Unfortunately, there are a lot of idiots out there...
Some of them seen 'wearing' developer hats !
btw... It is 100% impossible for you to, in any way whatsoever, brand people who wish to get a file from you as
leechers...
You are simply wrong... You have no idea what they may or may not be sharing...
Also, YOU are the Uploader in the case you are describing...
Others are hoping to Download FROM you !
You Upload TO others...
Others Download FROM you !
Mind that 'first stone casting' stuff, huh ?