Can someone ELI5 me what the appeal is to something like Jekyll, seems a lot easier to just setup a Posthaven account (or something similar) given you also get a WYSIWYG.
From my point of view, you're trading ease of editing but gaining speed, security and scalability. If the only thing on the site is static files behind a CDN, it's going to be fast and hard to hack.
Jekyll created static websites, with no database for an attack vector. I learned this the hard way after having a few digital ocean droplets compromised, no backups, etc. Thats one advantage.