A few years ago I joined Vanilla Forums and shortly after was tasked with replacing our aging text editor. I dove in and determined QuillJS was the best choice at the time. It was an active open source project and while it had a few warts it seemed liked they could be worked around. We built our new "Rich Editor" project and it has served us pretty well for a few years.
In 2017 the QuillJS author had a posted a https://medium.com/@jhchen/the-state-of-quill-and-2-0-fb38db7a59b9 a plan to get the project to it's 2.0 release with a few much awaited features.