Hi Richmond,
I can clarify that.
Most new contributors are not familiar with NNTP, and forcing them to
learn a new (ancient) technology just to participate in discussions is a
huge barrier.
Let's put it this way: Is there a bug in SeaMonkey that you want fixed?
We need more contributors that can fix it. When someone who can fix it
gets starting learning to contribute, they will inevitably have a
question, so they look for a place to ask. The technology used to ask
questions is not something they're familiar with and most importantly,
take quite a while to set up and learn. The new contributor says "forget
it; it's not worth my time", and as a result, your bug is not fixed.
From a moderator point of view, there's very little control over
trolls, abuse, and spam in an NNTP-only setup. We only have two options:
remove entire posts retroactively, or require every post to be approved
by a moderator.
If there's one word/line that needs to be removed, we have to delete the
entire message.
If the message needs to be moved to another forum, we have to delete the
entire message.
Removing posts also takes time.
In terms of communication tools, it's very helpful to add screenshots
and videos. With NNTP, that isn't an option. Even when you format the
post as HTML, there are complaints.
I don't even have time to get into the issue of publicizing your email
address for spammers to harvest.
As Dirk pointed out, the person who wrote that wiki page *in 2015*,
Gervase Markham (RIP) also preferred NNTP but acknowledged that it
doesn't meet modern requirements.