Cool idea, but I spent a lot of time amongst people who believed in star signs when I was young.
They will say “Virgo: the most generous star sign, OMG that’s so me. I like, super generous”, despite the fact they have never given a cent in charity in their life.
None of it influenced their behaviour apart from the ‘lucky numbers’, which probably got them buying a few more lotto tickets.
Just put ads up, we’ll live, and if we cant, we’ll make another website