Not sure about serialbrain2. He was on Reddit before the banning of all Q accounts. Haven't heard much from him since.
Here is a youtube that claims to be him:
https://www.youtube.com/watch?v=gtUoXXZpV2s, but who knows if it's really him or her?
And We Know and Praying Medic are not the same, 2 different posters.
SerialBrain2 moved to Pinterest after Reddit took down the Q thread.
Used to read him sometimes on Reddit but many times he was hard to follow, mades connections I could not see.
I don’t think And We Know is Praying Medic. And We Know is a marine. He used to go over SB2 drops, as did War Drummer, but does not any more; AWK just does his interpretation of the news. I think AWK (and War Drummer) dropped doing vids of SB2 written decodes because SB2 was getting waaaay out there. My favorite is Mueller and Comey are lovers.
Praying Medic “Dave” his last name is out there, is another guy. Dave is soft spoken and not as fiery as AWK.
LK Dark to Light also made(makes) vids of SB2 decodes, the occult ones. I do not think LK claims to be SB2 either.
SB2 posts (or posted) on a Reddit site, but I have not looked for or seen him for many months.