Regarding TheSamba, on 4/22, I wrote:
> (TheSamba's RSS) just didn't work for me.�  Maybe the traffic is
> just too high.�  Maybe it's because it doesn't present threads in a tree.
> Probably a combination.
>
> Maybe I'll build a filtered RSS feed that includes only new topics.
> When I see a topic of interest, I'll add it to my "Watched Topics" on
> TheSamba, so replies are delivered to me via email.

OK, here's my filtered RSS feed:

https://sbw.org/thesambatopics.xml

It updates once an hour.  Since there's only a few new topics a day,
that should catch all of them.

It worked well for me overnight.  I saw just a few new topics and
subscribed to one of them.

Technical detail, if you're interested:

https://pinboard.in/u:sbw/b:8df1546c4f5c