I don't know, I don't think it's really a huge waste of time considering I just read the entire comment thread in a handful of minutes. And beyond that, failing to comply with RFC requirements is the bug here -- a workaround existing for a specific language isn't a fix.
It's pretty standard to open a new issue and reference the previous issue for context, while keeping the new issue specific about what needs to be addressed - ie. RFC compliance.
I don't see the problem here at all - it was a reasonable request and it would have taken `feld` all of 2 minutes to do. Certainly less time than writing that blog post.
It's not entirely WolfSSL's fault. TLS 1.3 is a mass of kludges and hacks to deal with the fact that they created a new protocol that's nothing like TLS 1.0-1.2 but dressed it up to make it look like TLS 1.2. It even lies about its protocol version in the handshake, hiding the real version in one of the many extensions they had to invent to kludge it into working. And in terms of RFC compliance, one of the most widely-used implementations isn't compliant, it doesn't send any of the mandatory-to-implement cipher suites in its client hello which means unless you want to trigger a rehandshake on every single connect you have to implement their non-compliant form of TLS 1.3.
The real problem though is that they made a protocol that really, really wants to pretend it's TLS 1.2 when it really isn't anything like TLS 1.2. I wouldn't blame "middleboxes" for getting confused when they encounter that.
Again: the maintainer does not say there is no bug. He says: please open a new issue, with a proper title and description for the actual underlying problem. Is that seriously too much to ask? Instead, the guy writes a whole blog post shitting on the project. Does anyone still wonder why people burn out on maintaining FOSS projects?