The biggest issue is just how badly you can fuck something up by propagating a bad formula, then changing it somewhere and not updating what was propagated. It obscures the most important thing: the logic behind the calculations. Who in gods name wants to see just columns and columns of data? For what reason? I really want excel/spreadsheets to die a horrible death. They’ve ruined engineering as far as I’m concerned. Try to do an engineering degree without 12 different people forcing you to wade through their hare-brained idiosyncratic fuckfest of an excel file when what they want is probably two lines in python. I want to smack people who can’t just into dataframes. For gods sake.