Can’t reply to any threads

Look for this banner:

If you see it, the thread is locked for inactivity or age.

Always work newest questions in a topic list first. Most user will never return to a thread they started weeks or months before to check for new responses.

Bookmark this site map showing topic lists and use it to plan your work here instead of coming from a search engine. The latter does not identify old locked threads for you.

Site Map - Apple Community

Could you provide a link to a particular thread? Some older threads become locked when there is no activity for an attended period of time.

Are you signed in when attempting to post a reply?