I didn't write tact filters, and I didn't edit the nerd/normal dichotomy (from the original), but I did rename the parts to not use those words because they have personal groundings behind them. I didn't make that explicit, but in hindsight and in future I will. I thought it would be nitpicking and not necessary to outline the use of words with the context and ingroup/outgroup leanings that nerd/normal gives off.