I have considered it before but I changed my mind because I wasn't sure my audience wanted exclusive content badly enough. Subscription sounds somehow interesting until people start asking why they should pay when other creators offering similar things are doing it for free. Thats the real test. If you have loyal followers and unique content, it could work. If not, it may not work. I even know a creator that quietly stopped the subscription after a few months because his engagement dropped. It's better to build trust first before doing that.