Good to hear. My logs basically confirm the same thing. There is near 100% success rate in keeping these guys out. In fact I think so far it *is* 100% and only a couple of manual spammers got in, according to my logs.
So we're in extremely good shape, they are trying super hard to post garbage but failing. I have a reCaptcha failure log thousands and thousands of lines long with "Из окон отеля Мардан Турция всегда идеал&" and "Жители Турции – общество и этикет" for the topic titles - whatever those mean, but definitely spam content.
I've hooked up reCaptcha to the registration page as well so they cannot decide to strike that page.
Meanwhile, SFS is still blocking tons of them before they even reach the page.