Are you assuming that it's predatory just because it's a trailer park, or has he said on his blog that he is evicting people immediately if they are struggling? I'm sure that, like in every industry, there are good and bad actors.
Without really knowing much about him, your posts seem to come across as very...wealth-shaming-y.
In the link, he complains that the trailer park is not performing well financially - which generally means people aren't paying their rent.
He put in his lot with other investors who came across, to me, as predatory working in a predatory industry (trailer park tenants don't own the land that their rented trailer is on, and can never buy it, along with being charged absurd borrowing rates and fees). He doesn't go in to detail about evictions, but it's a good assumption that's what the active investors are doing to improve ROI. Either way, if he's participating in the industry, I assume he's part of the problem unless he tells us he is providing forbearance, specifically helping tenants, or gives us any information otherwise.
I'm not shaming him because of his wealth, I'm shaming him for complaining about not making enough money off of his trailer park investment which likely is because those people are financially destitute.
Just glad I'm not part of the industry myself and I think that whole line of business needs reform. Likewise, although they are great investments, I'll never be part of payday lending.