Shopify Messaging

I transitioned to Messaging from a paid platform a few months ago and don't feel like I'm missing anything (except saving money!). I can do pretty much anything I could do there but just have to search around a bit for it. This was a no brainer move. Why didn't I do it sooner?
The only drawback is there isn't a great way to clean the subscriber list. It's cumbersome to create new segments to figure this out. I would like to see how many new subscribers I have since I last looked.