Since Basecamp doesn’t accept Markdown anymore, what’s the best way to get a piece of text written elsewhere (which might include links and subheadings) imported into it?
Here’s a slightly cumbersome option. Trix (Basecamp’s editor) uses a contenteditable block, which retains styling. That means one could convert their comment to HTML (like the preview in a Markdown editor), copy the text from the rendered page, and paste it into Basecamp.