@hartmuntz: This is not the official forum for the plugin and, as with all forums, it is up to the forum users to leave responses. Just because no one has posted within a week does not have any bearing upon the plugin – it simply means that no other users have either looked at this post or have wanted to respond. There are many, many forums and posted within wordpress which have not been responded to in months. Perhaps you should check each one and leave a message as you do not seem to have anything better to do.
As one of the plugins developers I do look in on this forum when I have time available (and not all plugin producers do that). But, as a developer, we do have to put our time in on other aspects of the plugin, such as working on updates and bug fixes within the plugin, answering questions/issues in our ticket system, or monitoring the dedicated forum on our website; https://www.wponlinestore.com/mingle/
The main point of a forum is to exchange ideas and help each other out. If you have nothing constructive to add, or are not willing to help then I do not think you have quite grasped the concept.