Turning DRK into a tank was a huge mistake.

[VarinaVashai]

It was a major oversight by a development team to make a traditional DPS class as a tank. We have all seen these warning topics but now it's time to see the real results of this decision. Because people who waited and wanted it as a DPS role are playing it as such regardless of what SE thinks about the job now.
I heal DRKs every day and they are by far the most squishiest tanks I've ever seen. Why, most of them put all attribute points in Strength, use full set of Strength accessories and never use any defensive cooldowns. Often their HP drops low faster than I can heal through damage and they never help we with Living Dead and such to catch up, neglecting their tank and damage mitigation responsobilities. I have to babysit them every second or they will die, leaving me no time to help with DPS as is the case with properly geared and played tanks.

I would have liked to see DRK as a dps job, but it isnt. I think the DRK can tank just fine, but the examples you list. Ive seen them and know full well what you're talking about, however its one ive also seen with other classes in the game. Warriors come to mind, many wanted them to be pure dps weilding a giant axe smashing face. Much like you list you want to help dps, you want to help the group anyway you can. Well there are "healers" that only want to dps, just like there are "tanks" that only want to dps. So i think the issue might be that some ppl arent like you and they dont share your consideration for helping out anyway possible.