<p>When writing a message to a user, forgetting to fill the subject field and clicking "send" one is presented an error message ("subject missing") and an empty message field.</p>
<p>It would be more appropriate just to show an message that the Subject is missing - no need to punish the neglectful user. ;)</p>
<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br>Reply to this email directly or <a href='https://github.com/openstreetmap/openstreetmap-website/issues/668'>view it on GitHub</a>.<img src='https://github.com/notifications/beacon/1419053__eyJzY29wZSI6Ik5ld3NpZXM6QmVhY29uIiwiZXhwaXJlcyI6MTcwNDY1NDQ3MCwiZGF0YSI6eyJpZCI6MjMwNjY5Njh9fQ==--57b5363a097cd7240ed5683b8bfb4943e938c1ff.gif' height='1' width='1'></p>