I can make such a bot. It will support proxy servers as well. You just insert a file with logins and passwords and it will automatically go to specified youtube video address, and like specified comment, or may be video if you like. , it will do this using all inserted accounts, one by one. You will be able to run this bot on windows pc. mac or linux is also possible. Since the functionality is not too complicated it will use console where you enter a comment text for example, and a a link to video.