Yes, we even have to repeat ourselves in the same thread sometimes! Not many people are gonna get used to the idea that TG is an adjective. Modifying an adjective with "ed" or "s" doesn't make sense. Saying that "we ran across a group of transgenders" is technically incorrect. How can there be a plural form of an adjective? "Everyone in the group is transgender" would be correct. ed? Would we say that someone is prettyed, cuted or skinnyed?
If fact, as an adjective it doesn't even make sense to think of it as a label. Labels are nouns. But the way language changes TG may become a noun as well as an adjective. There are many words that are nouns as well as adjectives.
Next, IMO the general public, (even medical professionals) don't recognize or understand that someone can be transgender unless they can see it in one's personality. "In the closet" crossdresssers telling someone that they're TG only confuses people. If we say it while wearing an ear ring with tinted hair it will be credible.
The use of the word "transgender" has been confusing since it's more common use which makes me not want to use it. The word was coined in the '50s, but didn't become commonly used until the '90s.