At our company, we share a lot of material as HTML pages. We needed one place to collect those pages and send them to people. That's why I'm building NOS.
In NOS, you paste in your HTML and see it as a page, not as code. When a word or a number is wrong, you click that text on the page and type the correction. You can try both steps without signing up.
After you sign in, the pages you save stay in one workspace next to your notes. To send a page, you create a public link. The person you send it to opens that link as a guest, without an account. If you fix a typo in the page later and save, they open the link they already have and see the corrected page, so there's nothing to send again.