u/Free-Anybody-965

(All the others I could find are archived.)

I found out indirectly through another channel's One Million Subscribers video:

"We have a million subscribers! Do you realize what that means?"

"We're one-twenty-third as important as Markiplier?"

I initially confused him with MatPat, whom I didn't follow either.

I did eventually get a video recommended (IIRC, the first 7-Second Challenge with Tyler and Ethan) and then started watching regularly.