[Whether this message is on-topic is questionable matter; arguably,
the list maintenance policy is always on topic for a discussion list,
but in many ways it's still "noise."  Sorry.]

> Oh. So this is a confirmation of censorship of supposedly
> unmoderated mailing lists ?

I'm not sure where you got the idea that the NetBSD lists are
"supposedly unmoderated."

> In view of the debate regarding censorship currently underway in the
> UK I find this betrayal of trust rather hurtful, regardless of the
> reasons is happened.

Point one: Please distinguish between government censorship and
private censorship.  The NetBSD core team does not have a monopoly on
discussion forums, or even discussion forums about NetBSD.

Point two: Censorship, although a word with generally negative
connotations, has always been a useful tool for maintaining the
quality of a discussion forum, when exercised by its recognized
moderators.  rec.humor.funny exercises "censorship," as does
news.admin.technical.

Point three: It's difficult to see this as a "betrayal of trust" given
the lack of a promise (that I've seen) that these lists would never be
censored.