OP here. Blogs have a permanence about them. I think that permanence make people hesitate to write - almost like the posts are academic papers. I prefer "news

OP here. Blogs have a permanence about them. I think that permanence make people hesitate to write - almost like the posts are academic papers. I prefer "newsletter" instead because it sounds more ephemeral and personal. You can delete or hide them in the future. (For Postcard specifically - I'm working on the ability to add better privacy controls to individual posts - so that they can be public, unlisted, or private.)