It depends on the school/chapters in question.
I know one HBCU campus where the NPHC sorority pretty much won't allow anyone who has joined something with a pledge process, no matter how servicy it is.
On that very same campus, another NPHC sorority has no problems with that.
On a PWI campus across town where there are city-wide chapters, none of the NPHC orgs care if you pledged APO (for example).
But at a PWI I know in the midwest, it's very frowned upon to have pledged APO -- even though the chapter doesn't step, stroll, or have any traditions in common with the NPHC.
Look at your own campus and then decide what is right for you. You might decide to be a trailblazer. Or you might not want to take the risk.
|