I don't know if anyone has said this yet (haven't read the thread ) but on a PC the OP appears at the top of every page, highlighted.
It really helps focus the mind on responding to the OP. Could that be an option?
Or, of the OP is satisfied with the responses, could s/he not indicate this in some way, to prevent repetition of answers?
Like a "thread closed" symbol or something?
NHS U turn on trans terminology