While a Healer is not required to DPS - and frankly, people who claim Healer DPS is absolutely mandatory are just as big of idiots and probably can't pull their own share of DPS - if a Healer such as yourself is good enough to both keep the party alive and throw in some DPS for good measure, then I certainly don't have a problem with it. And as shown by previous comments, people certainly appreciate a Healer who goes above and beyond his/her designated role.

Stay golden, buddy.