Alig is an attention whore with a big mouth. That's not only evident in his tweets -

"In the weeks following Melendez's disappearance, Alig allegedly told "anyone who would listen" that he and Riggs had killed him. Most people did not believe Alig and thought his "confession" was a ploy to get attention." https://en.wikipedia.org/wiki/Michael_Alig

And in Party Monster confessing on camera: https://www.youtube.com/watch?v=fjem97Zvo4o

I wonder what his reaction would be if he found out his ties to Alefantis/pizzagate are being investigated. He seems like he just wants exposure/attention no matter what the cost. He could be a valuable source because of his willingness to talk.