The comments you see on those videos are all fake in order to convince people that the program is legitimate. There are websites where you can purchase fake YouTube comments, views, likes, and subscribers. All of the comments you are seeing were either purchased, or put there by the person who uploaded the video.

If you're unsure, try clicking on one of the accounts that left a comment. Most of them won't have any videos or other activity, because they are fake accounts created for the sole purpose of leaving fake comments.

There are no working VIP/Gold Generators, and there never will be (it's impossible to do without direct access to WeeWorld's servers, which only WeeWorld themselves has). All the ones you find are either scams or viruses designed to steal your information.