To keep your microblog "micro" you are able to give a maximum height for every micropost and reply.
Every content higher than the configured value is cropped and can be unfolded.
The height is configured in pixel (not signs or words), because this would not work for images.
Post with cropped content.
Delete posts with replies
By default you can't delete microposts as soon as there are replies to it. By checking the "Allow deletion" option, it's possible for users to delete their own microposts even if answers already exist.