I don’t get it.
I don’t understand the torture thing, but I think the comment is joking that “bringing in the goat” would mean bringing in LeBron, because he is the G.O.A.T. (greatest of all time)
Edit: found an explanation: https://knowyourmeme.com/editorials/guides/what-does-the-salt-water-goat-torture-two-sentence-horror-story-mean-the-viral-reddit-post-explained
A painting at the Rothenburg criminal museum, depicting criminals placed in stocks. The town people would tickle them and put salt on their feet so goats would lick the feet.
--Wiki, Tickle Torture describing painting at “Rothenburg Torture Museum”
TL;DR goats(the animal) have rough tongues that may rip skin off and could be used as a form of torture.
Betting against LeBron has caused me financial and emotional damage.
Goat is both an animal that likes salt, and an acronym for greatest of all time (in sports).