[DaiPlusPlus]

> petty, deranged people

That has not been established. Without knowing the author’s history or any background the only thing I can conclude from the conference’s organisers is that they are disorganised and with misplaced priorities: if a potential speaker alleges they’ve been incorrectly blacklisted (and shows no obvious warning signs) then investigating and rectifying the situation as necessary should be a high priority: that’s just good customer service and community leadership - especially as checking the pedigree of a Twitter blacklist is a trivial 5 minute task.

If the author really was unwelcome for some reason or another they would have ignored his email or replied with an short “because...” message - not a “we don’t care” response - because that really does mean they really don’t care.

(Though I’ll make a snark about how the JS community moves so fast that anything useful gleaned from a JS conf would be obsolete in a year’s time anyway - limiting the potential value of his attendance anyway)