On most servers the default is to make a post private or shared among groups of friends (those who follow you), you should edit the options and make this default public, as if you forget and save/post the document it will not change. You and a few others may see it but not everyone else not following you. Remember visibility is not within the server but all servers federated sharing content with each other. It is possible to set the visibility on each post, if you can remember to do so, and you get 3-4 options.
Once you place a post you can not alter it, so proof read it well. You can delete a post after copying the content and resubmitting a corrected one.
If you want others from this group/discussion to ever find it. So #libvan should be included somewhere in the post to be seen. If you want your post/thesis/position to be added to this side please specify the title you want or to which thread do you want it to appear.