No, not the stuff made from soy beans. Tofu is the the german term for a behaviour most likely found in corporate email. It means “Quote full, add your text on the top”. That’s sort of reversed “AOL” behaviour.
When I started email, I came from a FIDO background (anyone remembers this? BBS and stuff?). Connection time was precious and expensive. Quoting rules existed like don’t quote too many levels, answer inline etc. When moving on to the internet, I mostly kept this.
I dropped writing emails like this like five years ago, when I entered the magical world of business emails. Noone understood inline replys and most people were complaining that the communication history was missing. So I adapted, at least at work. And Outlook 2007 even has support for navigating in mails like those. I also understand why a certain kind of people like it. When you print the mail, you only need to print one mail and have the whole conversation at hand.
But honestly. I’m doing a lot of mail on my mobile phone currently. Fetching mails is not too fast on there. I don’t want to download 200k for a simple “Me too”. I don’t want to scroll through all of the shit. I don’t event want to download the same shit again and again. I already have the communication history available.