You conveniently left out the preceding sentence which is of the format "X, Y and Z can stop reading now" -- and whoever is left is assumed to already know Emacs or Symbolics.
no, i very narrowly responded to the content of your comment, because no matter how much of dick the guy may be (i have no idea but the screenshot certainly gave away a very imature impression), you, instead of attacking that preceding sentence, instead twisted the next one unfavorably.
your claim literally says "we expect you to already know Emacs and Symbolics, if you used something else, piss off" is bullshit, figuratively speaking. i just wanted to point out that your high horse of niceness is not so high or nice if you need to lean on slandering people. that's all. i don't know the guy or the software.