I tried to restrain myself! Actually my standard post in the thanksgiving thread is that this sale is super weak compared to the Christmas sale.
Then for the Christmas sale, I post about how all Steam sales suck these days because there are no actual deals as they can’t be limited time/flash sales due to refunds.
Then I’ll come into the thread from time to time to signal my agreement with other posters bitching about how the sale sucks, and tell people ecstatic at getting games they really wanted that the sale really wasn’t very good and it was available at the same price back in June. Basically I do everything I can do to suck all the joy out of the occasion.
I don’t do this every sale, but often I’ll interject how I don’t care about the badges, stickers, or whatever gamification Valve is doing this sale, while in the background I make sure I log-in every single day to fill out my sticker book, even though I never look at it again and feel vaguely ashamed at my own hypocrisy for participating.