Down to the individual how my research they do or dont do on this issue, some gents will happily plough a post OP TS that looks convincing 'to them' i.e. looks to be a woman.
I have read many times on this forum gents saying 'defo a woman' and the reality IMO is you just dont know always know with modern surgery and people taking hormones earlier and earlier - London is a hot spot for these Post OPs - top surgeons and best private hospital.
This is an info and opinion sharing website, nobody stopping anyone doing anything or definitively saying Woman or Post OP, up to each gent to decide IMO
I welcome the disucssion.