GG Poker possible superuser?

Tried posting this and can’t get any attention.

Was playing on GG and some guy came to the table with a real odd name, took 500BB out of the game within an hour playing every hand he possibly could and then left.

Checked hand history afterwards and noticed his identification number was a little different than anybody else’s. I could just be being paranoid. But thought I’d see if anybody could confirm.

Here is a receipt.

Poker Hand Hold'em No Limit 2024/08/25 16:50:43
Table 6-max Seat #5 is the button
Seat 1: 5c7a8617
Seat 2: 8d5f8573
Seat 3: Hero
Seat 4: 39339109
Seat 5: 1b4f36cc
Seat 6: d57b4e7c
d57b4e7c: posts small blind
5c7a8617: posts big blind

Seat 1 2 3 5 and 6 have an identification number consisting of numbers and letters.

Seat 4s identification number is only numbers.

I just found it strange that the weird suspect player had a different ID then everyone else…

Am I being paranoid, or is this a super user?

Can anybody confirm what their hand histories look like and if they’ve played anybody else with strictly numbers for identification purposes?

Thanks