WordPress gallery was introduced in version 2.5. The first version of WordPress gallery only show all the images that uploaded on that particular page.
Embed video on your post is a way to keep your visitor on your site, and it is always a great way to interact with your visitors. Thanks to all the WordPress developers, embedding media on WordPress post and page is getting a great improvement on every major update.
Sometimes WordPress user, or better yet a premium theme user, will be required to create a temporary WordPress account for support purpose.
WordPress seems to have a rather simple visual editor. It is limited with some frequently used button, such as Bold, Italic, Link and etc. Some user find it hard to change text color, or finding a heading to use.
Widget visibility is a great feature from Jetpack that help you show certain widget on certain page only. Now you can have a more dynamic widget page, here is how you do it.