Diving into magic
Typing messages with the system was extremely fast, it converted your thoughts into words. It was certainly not easy at first, much like telepathy, one had to actually think the words. But after a few tries, most everyone had managed, as almost everyone could think with words.
Though there were a few players who were unable and a speech conversion was added for them. The developers had acted quickly to take care of this, as such it never really made any headlines. Even though it had confirmed beyond a doubt that some people can't create words in their heads.
Due to the method of typing, by the time Eldrian finished sending his messages the spell was still going on, more importantly he could feel it continually taking his mana. Much like other spells which he could keep active after their normal time. Floga for example was supposed to just last a minute at most.