The latest pedo slur (an abbreviation of the term paedophile) was part of a series of tweets by Musk directed in British diver Vern Unsworth, who criticised him for trying to get involved in the rescue attempt.
Elon Musk gave nearly $40,000 to a political committee that benefits House Republicans but said he gives to both parties to "maintain dialogue".
Unsworth had stated that he felt Musk's submersible had no chance of ever working for that specific rescue because it was too big and rigid for the caverns, and as can be seen at a column on the Inquisitr. "We will make one of the mini-sub/pod going all the way to Cave 5 no problemo", he wrote.
"I thought they had it in hand & only agreed to help when Thai SEAL died (deep cave pumps not operating at time)", Musk said.
Gizmodo has reached out to Tesla and SpaceX for comment, as well as Musk personally, and we'll update this post if we hear back.
Multiple users have also reported Musk's profile to Twitter, and said that celebrities shouldn't be allowed to broadcast such baseless allegations to their millions of followers.
Musk deleted his tweet thread around 8:30 p.m. Sunday evening, but Unsworth has saved copies.
In the midst of the tense rescue mission earlier this month, Musk announced plans to help.
Instead, the Silicon Valley mogul stuck to his original comment, tweeting "Bet ya a signed dollar it's true" to someone who called him out for the remark, while also saying he never saw Unsworth when he was at the cave.
The sentiment was shared by British cave diver Jason Mallinson, who told ABC's Four Corners programme, "I was confident of getting the kid out". Musk, for no reason whatsoever, called Unsworth a "pedo".
Asked about the "pedo" tweet, Anderson said in an email: "I intend to convey my - predictable I trust - feelings to the company tomorrow".
Elon Musk is not taking criticism of his submersible that was designed with the hopes of saving the Thai schoolboy football team and their coach from a flooded cave.