I am going by Mr.Fox's thinking here, which is music.
"We have it on record." - I can only think of cassette tape, vinyl records, CD, and the like. Any medium used for recorded music.
"2|2+2|2" - 242... 2:42 song length? Why use "|" and divide the numbers? It's 16, mathematically. But this isn't math they say.
"Ineffective medicine" - Placebo, Chris' favorite band. He mentioned this several times on the forum. Mostly as replies to music threads on The Basement and Brewster's Cafe.
"Hi mom" - part of the lyrics to Placebo's "Blue American" song.
I searched Blue American on YouTube and there's nothing special on 2:42 mark on the official audio and concert. I know the code needs to be clicked to be redeemed, but I still went and tried to redeem a code manually. So I typed in the lyrics at that part, which is "I don't care for myself", and it didn't work. As expected.
I also searched the forum using "placebo" as the keyword and filtered it to just Chris' posts. I got nothing.
This gives me flashbacks to Camp TBT.