We have no problem with really creative people soloing group content. We got a kick out of that video of the rogue soloing Patch 25, but it took the guy something like 4 hours. We like playing healers. If all you have to do is heal, it's boring, so we pewpew, heal, pot, and repeat. But we will never forget that our main force for maintaining, the vitality of the common struggle of responsibility and some teams take more healing than others. We like that healers will have damage and CC, as well as heals in Tera.
But if healers get yelled at, it will not be because they did not do enough DPS. It will be because they didn't heal. So do not anyone tell us that the healer's primary function isn't healing. And if you do not need healers to heal and you do not need tanks to tank, then you do not need healers or tanks at all. You can buy tera gold for your character.