I don’t know about you but I find this wording quite sinister. Unfortunately I’m not on twatter so I can’t report them.
I assume attendees consented to photos being taken as part of the entry (assuming the photo itself is official), but from an LGB perspective, this is so awful.
In all the LGB+ stuff I've run or been involved with, the first rule is always: be mindful of the fact people might not be 'out' and might not want people to know they attended an LGB+ event. So don't say "I saw Roger at that gay event on Tuesday" to colleagues, for example, and don't post pics, etc without everyone's consent. I realise most people nowadays seem ok to stand up and be counted, but not everyone is - I personally took years of going to LGB groups before I felt emboldened to come out to family and friends, and I've been outed by others in several horribly public ways in the past and it still haunts me now.
It's so awful to post this, even without the ridiculous transphobia accusation. Someone's homophobic family could see this and ruin their life.