roubaixtuesday
self serving virtue signaller
I think it's the not so subtle difference between a topic having some 'political' element which most posters can discuss with an open mind, and a small group of posters that have a very 'Party Political' angle on topics.
People often regard their own opinions as "not party political" whereas others regard the very same opinions as "highly party political".
This applies, I hasten to add, to people of *all* persuasions.
Thus "it's just common sense" = "naked prejudice", or "it's obviously a common good" = "marxism"