You whiners just don't understand! You see a few spam threads, and you think we're not taking care of it.
I just deleted over 300 spam threads, and I do that every morning. There were about 10 that showed up to the members, and 300 that were caught by the spam filter, and those you did not see. Then there was the Escort spammer whose threads were not caught by the filter, so his posts appeared, but they are gone now.
When a spammer gets his posts to appear, they don't stay on the forum for more than a couple of hours, and they are deleted. If it bothers you that much, maybe you have other issues.