Board Thread:New Features/@comment-33571501-20181220045101/@comment-26497423-20181221035927

dev:UserStatus, it has to be manually changed so people don't have to worry about their activities being disclosed without their permission. It also becomes more unreliable due to people forgetting to update it.
 * You can make a script to update it automatically
 * You'd run into problems when choosing how to store the last active timestamp
 * It would be very hacky
 * It would be a pain
 * It could be against ToU
 * Just because something is possible, it doesn't mean it should be done
 * and it would be awesome