1. It'd be great to have the auto-suggest for a title (pulled from the article) for all topic settings - right now it only auto-suggests a title for topics that don't allow title editing. It'd be an improvement to have it auto-suggest but remain editable when settings allow.
2. Had an odd occasion a moment ago when submitting a link about Draymond Green topping 1000pts in +/-.... I manually entered text for both a title and "Your Thoughts", and the URL was to a tweet. I guess Twitter URLs have some custom behavior - it overrode text I had entered for both sections and replaced the title I entered with the content of the tweet I'd linked to. We could probably use either an intermediate step where we choose whether or not to override, or (IMHO better) just don't override with tweet text if user has entered manual values. You could append/prepend the tweet text to the excerpt in a "From Twitter: " style as well, or something like that. I'm also curious - what other URLs have custom logic?
3. Earlier today, I attempted to submit a post after changing topic a time or two, and somehow got the front-end out of sync with the topic logic about editability of titles. It was no longer correctly throwing front-end errors, but would validate (and return error) after submission only. I'll try to replicate it and post the replication process in comments if I can get it to recur.