There's always a lag between the time when the spam bots learn new tricks and anti-spam measures catch up.
It's clearly spam, we all know it's spam, and I hope no one here is silly enough to click on a link for CBD gummies or keto pills or Mumbai escorts or something written almost entirely in Chinese. So it may be an inconvenience to spend an hour or two scrolling past spam threads until a mod can get to it, but it's not the end of the world.
We would have to have a lot more moderators in every time zone who never left their computers if we wanted to catch every piece of spam before members noticed, and even then, a few would slip through during these attack periods. We also do still manage to catch a lot of messages before they see the light of day.