This thread again.

No healer is required to dps, you are free to choose not to. That said, you have dps skills and you have a lot of downtime. Some groups are going to wonder why you're not contributing during that time. It's very rare to be kicked for it, but it is an acceptable reason to kick someone because it's a "playstyle difference." Therefore, if you don't want to worry about that (very small) chance it will cause a conflict, then you should be open to the idea of DPSing. /thread