Well when they do this kind of promo, they should have anticipated the outcome. In fact 20 servers are not enough. Some users will RU TeraBytes of files. Of course they won't think of others, since money is their first objective. Ultimately, it's up to Wupload to add more servers.
That's why there should be limits on it, 100gig per day is enough for people. Some people RU everything then get like 20 download per file as if that is even worth it. A total waste of resources.