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Uhh.. Unless this patent was specific to twisted pair (no, didn't read tfa, I must not be new here) going back to coax won't save you. (which is sad, I really loved those missing terminators somewhere in the network.)
Yes, the files probably still exist on user's and authors' computers, however the loss of information on forums is big. Over 10 years of discussion and ideas are gone,many writers are gone already. Searchable forum full of valuable info. I hope they get the data back.