A lot of people think that they get it, but I think that unless you have it, it's fairly difficult to understand. The result is a lot of very unhelpful advice online. Besides your comment, the only other place I've ever read similar stories are for comments for propanolol on various drug-related websites online, where many people seem to indicate that they experienced paralyzing fear from public speaking, and that in many cases propanolol seems to have help them overcome it.
I've never tried it, but I'd be curious to hear if anyone hear had anything to say about it one way or the other. I'm an IC and have been mostly avoiding public speaking lately, but am at a company right now that engages in frequent song and dance shows where people are highly encouraged to get up and give lightning talks and such for everyone else. I've managed to dodge it so far, but there's no question at all that poor speaking skills will be detrimental to my career over the long run and that I need to find a fix.
At least for me, I have the fight or flight response because of essentially prior trauma (minor when compared to trauma from war but still technically sub-clinical PTSD) and so "you shouldn't take drugs forever" isn't a strong counter-argument because you just need to take them until you have enough positive experiences for your dumb pattern-recognizing brainstem to chill out. Thank goodness for the gift of forgetting.
You can get like 160 doses online from India for like $17.
Stay strong, brother.
but if I just finish something physical (exercise etc), I am calm and cool as a cucumber and have no fear.