The Kunena team has announce the arrival of Kunena 6.2.4 [K 6.2.4] which is now available for download as a native Joomla extension for J! 4.3.x/4.4.x/5.0.x. This version addresses most of the issues that were discovered in K 6.1 / K 6.2 and issues discovered during the last development stages of K 6.2
One option that would be interesting, I think, is to have a draft mode.
With a management of its drafts by the user himself. Which could be limited to 5 for example by the administrator.
It is not the ideal solution, but it is a better than nothing. Hoping that this draft mode will one day appear in kunena for everyone.