I think you're confused.
I have never heard of any group called "Stonewall." "Stonewall Inn" is the name of a somewhat sleazy bar in Greenwich Village which attained notoriety in 1969 when the gays, drag queens, etc., who hung out in the area rioted in response to one police razzia too many. This riot (and not the bar) is credited with sparking the current gay liberation movement.
I know of no pro-LGBT organization that outs closeted LGBT people "for their own good." There are some gay organizations which out:
- public figures, who are also
- closeted gays, who also
- blatantly advance homophobia.
on the grounds that being outed is poetic justice for their homophobia and hypocrisy. I'd offer Sen. Larry Craig as an example, except that he outed himself.
I would agree that outing CDers who would prefer to remain in the closet (for whatever reason) is a really awful thing to do to someone. (I don't myself know about what CDing groups do because I can't see myself wanting to get involved with one.)
FWIW, there are reasons unrelated to CDing where people might reasonably not want pictures of themselves put out in public. It is a good general rule not to ever post or publicize pictures of anyone (other than perhaps a public figure being public) without their express permission.