Earlier quoted context omitted.
As I've said elsewhere, the $29 and $99 support plans for AWS have to lose AWS money. At least a (fairly long) while ago the support was nuts through these. Total expert level / out of scope. Frankly I'd encourage them to hold scope a bit more but its obviously working for them.
AWS employee here. When I was an AWS customer I was also often surprised by the quality of the support answers. Now from the other side I can explain why: even on the cheaper support plans it isn't uncommon for difficult questions to make their way back to the relevant team and the answer you are getting was often written by an engineering manager or engineer on the team that built and operates the thing you were ask…
This would explain the response I got (backstory - I am a contributor to a number of open source packages / not totally clueless, but was coming in from a micro personal account). I was like, how the heck do they afford this response for $99! (or whatever it cost back then - this was a long time ago).
I kept my support plan active for a year as a courtesy though I never had another question aside from the first two I put in.
That said, as a programmer I like time to focus so being asked customer questions would drive me nuts, hopefully they filter out the idiots who just can't setup things right (80% of issues are not bugs but customer setup issues).