Thoughts on "why even use X tool"

A colleague brought up the fact that he doesn't use LinkedIn ... and probably never would (for clear, specific reasons related to sharing, security, investment, etc.)

As we continue to look at the best way to move workshop participants along the change management path from Awareness to Interest to Trying/Piloting to, finally Adoption.

Whether for processes, methods or tools what are the best ways to address resistance and, even more importantly, the match to participant needs?

As noted by Simone Gross on her blog [1], in relation to LinkedIn, "Arguably, to find the right balance with only one profile might be insufficient. Dropping LinkedIn yesterday, trying Google+ today, turning to XING tomorrow – maybe we have to get used to continuous beta, also in our social networks."

What are your thoughts?

[1] http://jboye.com/blogpost/3-good-reasons-not-to-use-linkedin/