I'm interested in anything that the original HLI posts, but I don't think the thread you linked to is related, other than the topic of space elevator.

The OP claimed to not even know who High Level Insider was.

The ID you mentioned (VKdh5K4G) claimed Trump is "a traitor to our country" and claimed that Christ didn't turn water into wine, but used a sleight of hand trick with a false-bottom barrel. :p

Several other anons in that thread were also saying they didn't think anyone there was HLI.