But is it just me, or are we seeing just as many crypto ads as before?
How do these get through.
What are facebooks measures - is it real people reviewing the ads or just algorithms?
It's possible that they simply announced a ban to deter people from even trying to advertise, but haven't yet put anything in place to block the ads.
Study the ads you see, note the keywords they use and don't use (you are trying to work out what is acceptable to Facebook). Then do a small cheap test of your own to see if they accept the ad.