Hey OP are you a post op TS?
If you tell us "no" are we to believe you?
If you don't tell us are we right to assume you are anyway?
No really are you a post-op?
We all have the right to act upon our beliefs and preferences, substantiated or not, rational or not. Whether you are a post-op or a "male" or "female" troll or an idiot or a child the rest of us have the individual right to express our (unsubstantiated) opinions about you, within the local bounds of the site rules. We're all free to offend and insult each other but don't expect those who take offense to subsequently assist you, graciously or otherwise.
What are you actually afraid of? A person would have to be seriously, psychotically committed to transition in order to lure "straight" men into sexual acts (whilst maintaining "his" own male self-image) that would then be revealed to have been with another male, posing as a female, so as to cause the "straight victims" (deep) psychological trauma.
What do you define "gratifying sex with another" as? Fuck any hole until you cum without any heed to your partner's experience? Consensual, "loving" sex? Must have sexual physiological response from your partner regardless of her psychological state?
If you believe your fragile, bigotted psyche would be harmed by an inadvertent fuck with a non-cis female then best you only engage in sex with civvies that you've had the casual time to inoffensively confirm to your satisfaction are cis-female.
If you must pay for sex then best ask KT how he manages to convince himself that all the enhanced women he's fucked are cis-female. Maybe pay him for kissing lessons?
How do you cope when you find out the blonde you've been talking to is a brunette or a redhead? Or that the apparently "white" person is in fact not "pure white"?