Add mailbox for Oanda.
Send "CBR500Riders" mails to /dev/null.

These are typically just forum post notifications, which I get on the
Web where they're [sometimes] useful...
Add filtering for Green Party of Canada mails.

I'd like to keep up with them, but there's just too much going on to do
it. To relieve stress in my inbox I need to move them out of the way for
later. I still read them and take appropriate action as able!
Filter GWRRA posts into mailbox.

It is rare that I read these messages from Mutt anyway, but they often
come in batches and when they do they usually contain PDF attachments.
They end up clogging my inbox. GTFO my inbox!
Filter Canadian political activism-y things.

Again, clogging inbox. There's too much broken with our government right
now to NOT clog your inbox. These are generally welcome mails, but again
I can't keep up with it.
Filter Netflix mails out of the inbox.

These are relatively rare, but almost always disinteresting or spammy.
Filter Tenaris stuff into its own mailbox.

At this point it is completely unrelated to RBB and deserves to be kept
separate.
Filter YouTube mails into its own mailbox.

Typically these are comment responses, which are welcome, but more
ofthen than they should be they are spammy, "hey complete stranger, come
check out my stupid video you'll hate!"

"Go fuck yourself, asshole, you can't rap for shit! GET A JOB."[1]

[1] Nothing against rap, rappers, or non-traditional incomes. It just so
happens that the people messaging strangers on YouTube to check out
their videos SUCK which is why they're working so hard to get people to
watch their videos.