Yes, the system times out relatively quickly, and after that you can’t edit a message.
I have a theory about the relationship between crossdressing and ultimately being transgender. I think it is a bit like peeling an onion. Peeling away some layers of masculinity may, in some cases, allow more of our true selves to be revealed. We don’t “become” because we already “are”. It just took some time and the right situation to discover who we are.
Similarly, I don’t view it as a change in tastes. I think when the veneers are striped away, we allow ourselves to make different choices. Choices that, without societal pressures and expectations, we might have done sooner.
Just my theory, anyway…