Being not only a fan of LetsEncrypt, but a donator and github contributor. I hate to have to leave it but I've been wanting a dashboard sooooo bad! And not even that, just a simple way for me to view expiry dates/validations. That's the one thing I don't like about LetsEncrypt. I get it, I'm gonna get ragged on by the cli fan boys, their argument being well your nginx logs or caddy logs shows that at runtime. I know and caddy does a great job at it, logs and all. Nginx as well, since it relies on certbot which is simple when it comes to set up and issuing all together.
But at the sametime I have to SSH into my server, view these logs or conf files to view validity, or cert state. Yet ZeroSSL gives me this awesome dashboard. I have to say if you know me, you know I'm a sucker for a sexy crisp UI. It's the same reason I can't bring myself to use any other domain registrar than Google Domains. Subsequently the same reason I use DigitalOcean lol. But really, getting back to the article at hand. I don't know a reason to use LetsEncrypt anymore. ZeroSSL's free tier offers ∞ 90-Day ACME Certs, and 3 90-Day Certificates. Other pricing tiers here, very affordable for the services offered mind you.
A big plus with ZeroSSL is the Rest API implementation. Where is this becomes a little more convoluted and hard to follow with LetsEncrypt. For most, you probably don't care about this. But when it comes to Devs, this is a huge plus that is made so easy, and the cost not astronomical. Pair this with the dashboard that allows you to easily cancel and draft certs. It's a no brainer. I hate that LetsEncrypt really lost out on this model, but even with that being said I wouldn't be so sure to say they are going away anytime soon because of this. But it will cause them to loose customers and become less prevalent.