For new members and existing members who lurk in the background and decide to post for the first time, those postings will not appear immediately and that is by design.
Posting delays apply only to new members and those who have never posted before.? They go to the moderator(s) for approval, before appearing on the site.
This is to discourage bogus or inappropriate messages and that is why this site is clean of any spam and attempts by non-members to post material not related to this site.
After two consecutive, moderator approved postings by a new or existing member, that delay or approval process no longer applies and postings will appear right away.
I hope this explains the delay of some postings.
K2WH
Bill (Group Owner)