Nick Howard is some sort of mindset coach who purports to get small stakes players successful enough to move up to bigger games, and win there as well. He claims he stakes these players once he sees they are ready.
Some people criticize his tweets as being too hokey or full of psychobabble.
The one getting the most attention recently was his claim that he ate dog food when broke in 2012.
https://twitter.com/nickhowardpoker/status/1582230159830110208
Today, after some people criticized him for eating dog food when a cheaper human option such as top ramen was available, he backpedaled a bit:
https://twitter.com/nickhowardpoker/status/1582870688062324736
Incidentally, this same criticism was levied upon an infamous episode of "Good Times", where a nice elderly lady upstairs was eating cans of dog food because of being poor, despite (again) cheaper human food being available:
Do you think Nick Howard really ate dog food? I call bullshit.