Thanks for the feedback! We're busy working on RSS imports right now and should have something up in a day or two. We're open to ActivityPub too but this might take a bit longer just because we're building Able in our spare time.
Ultimately, we want to create a great place for developers and then charge businesses to advertise their job vacancies to that community. Because we're self-funded we don't have pressure to grow at all costs but we'll need the support from the developer community if we want to turn this into a sustainable business.