"I'm not spamming. I've posted it in two threads"

Except that neither thread was about audio compression.

"There is no way to play MP3 files in the US without breaking the law"

Oh, really?
Tell me, which law(s) do you believe are broken when you play an MP3 file?
(Copyright laws involving pirated music excepted.)

"or using non-free software."

Are you kidding?
There are hundreds of free applications to play MP3s.

Pretty much every OS comes with one pre-installed, unless you are unfortunate enough to be stuck with Lunix.

"Ogg/Vorbis isn't patent-encumbered,"

Which means absolutely nothing to the end user.
Unless you are in the business of selling hardware to encode/decode audio streams, patents and licensing are non-issues.

"and furthermore, it achieves better compression and quality."

That depends on the bitrates.
At 128Kbps (which the OP used) or higher, modern codecs are statistically tied in perceived quality in public listening tests.

"If you want people dedicated to freedom to listen to your audio, provide it in a format that can be played in the Free World."

That would be MP3, which is playable everywhere.
It certainly isn't Ogg.
Post your files in Ogg and you have just limited your audience to only the most tech-savvy of readers.