Please don't link to the site.

For you own health, you may want to forget you even have the link yourself. People like those you interacted with, small-minded and sad individuals, are just going to be like that. You won't change them, unfortunately. 

If the site's admins are that sort, you could report that user for their comment. I consider that kind of statement highly offensive, even though I'm not transgender. If not, don't waste your time, leave and don't look back. 

Your mental health is worth more than their satisfaction.