[Adutude]

Someone just needs to create a swiss army knife headless browser streaming file saver/converter and leave out any text about how to download youtube videos with it.

Then the community can be like Popcorn time and say, ahem, no copyright infringing code here.

Or a version could even be released w/out the test cases and or README files that make any reference to any type of "illegal" activities.

[rrobukef]

Contribute to the Lynx browser to download embedded video's to mp4. Add flags to the command line to download them. Then it serves as an integral part of a web-browser and you don't break the Youtube TOS.

Edit: Add to firefox a right-click option "Save Video As".