Dave Liquorice wrote:

for a spam free newsfeed. eternal-september.org is free and I know
that people use that without complaining about spam, so maybe their
filtering is as effective as NINs?

I've recently switched to eternal september - trialling it for a bit
before I close my paid Gradwell account. Seems fine, and I certainly
don't see as much spam as the OP apparently does.

Pete