Should a bitcoin full node have a [NO2X] tag added to the User agent string (via -uacomment parameter) ?
if you run "bitcoin core" client as your full node then you are automatically saying "no 2x", there is no point in adding something extra to repeat the obvious in my opinion.
in other words /Satoshi:0.xx.x.x/ is equal to /NO2x/
They are getting nasty and nasty everyday. Today 2x devs just merged the ability for segwit2x to disguise itself to not get banned by 0.15 nodes; https://github.com/btc1/bitcoin/commit/28ebbdb1f4ab632a1500b2c412a157839608fed0
