I've noticed a number of users have been embedding images into their questions and their answers, wherein the images consist of nothing more than the Quranic text itself. Presumably this is due (in part) to the fact that Arabic text can be very hard to read on the site.
Yes, adding the images does make things more legible, but it also has a very serious drawback: Text that is in image form is unsearchable. As we're striving to make a repository of questions and answers not only for ourselves but for all future users, the ability to easily search through existing posts is at least as important as having them look good to the end user.
And that's not getting into other issues that copious text-image use can cause, especially (but not limited to) when dealing with devices with limited bandwidth, screen size or memory (e.g., mobile devices).
Images should be used to complement the text of the post, but never to replace it.