Notes was always a terrible email application :)
You are right about the level of IT capability of most small shops, maybe I "crippled" would have been better than "destroyed".
But elitist?
Have you ever considered working on your home furnace? There are people who can do these things. The ones who THINK they can do it are Darwin Award winners.
The downside of an amateur rolling their own solution in Notes was not life threatening but it certainly wasn't smart.
Notes gave people who had no idea what they were doing the confidence to build solutions that were fine for personal use but completely unsustainable at even small office scale.
The "experts" who adopted HC and Notes were the ones who did the real damage though. These folks (and I knew a few) were just a step above the guy in the office who refilled the toner in the photocopier. They created half-working systems and then moved on. They didn't have to live with the technical debt they left in their wake.
They set unrealistic expectations for what good IT solutions should cost and left guys like me trying to clean up their mess for years.