We'll be removing the preview function counting towards the regular posting rate-limit.The full duration is included in the error message as otherwise timing issues could arise and be even more misleading than just waiting the full timeout.
Security tokens expiring will only be common if you open multiple forms to reply to posts or if you leave a form open for a long period of time (the tokens last 10 minutes). If you're running into multiple timeouts when attempting to submit a single post then that sounds like an actual problem. Maybe you could clarify here?
Security tokens expiring will only be common if you open multiple forms to reply to posts or if you leave a form open for a long period of time (the tokens last 10 minutes). If you're running into multiple timeouts when attempting to submit a single post then that sounds like an actual problem. Maybe you could clarify here?