first off, i am no social media expert by any stretch, but i think this depends on now you view LinkedIn and how you use it. I view LinkedIn and use it almost exclusively asa reasonably efficient way to establish and maintain an electronic connection with a business contact - the digital equivalent of exchanging business cards, only better. That's it - a way to stay in contact with a vendor, business partner, customer, prospect, etc. so in the future if they need to reach me or visa versa LinkedIn can facilitate that. I don't see my linkedin profile as my 'personal' profile, it is my 'business profile', period. I personally think LinkedIn needs to implement multiple personas as we often have different types of connections and relationships with vendors VS customers, VS business partners, VS employees, VS fellow entrepreneurs, etc., but that's a topic for another discussion. I suspect if you view LinkedIn as more of a digital resume then that is what's causing the hesitation. I do connect with customers and prospects on LI all the time and that's all i use it for (and business pages). "social media" is a pretty broad catch-all. I certainly don't leverage social media to the extent that i could, but i'm simply not interested in spewing forth my personal views via LinkedIn - Twitter and FB are perhaps better venues for that, but i don't use Twitter or FB much either. I know LinkedIn is trying to increase engagement and thus trying to make it more of a pontification platform, but Personally i think that's what personal blogs are for. As you can see when making comments here on FD (this comment will likely get moderated out) they auto check the "post to LinkedIn" check box below, but 1) this comment doesn't make sense to my business contacts (LI contacts) outside of the context of FD and 2) I have a different relationship with fellow entrepreneurs (on FD) than i do with my general business contacts on LI. FD is the place i choose to discuss startup and founder and entrepreneur-related stuff (employees, terms sheets, equity, etc., not LinkedIn and not FB. Maybe it's a matter of siloing the 'social media' platforms you use? It's funny, i have a few patents in the area of what we now call 'social media', but i use it pretty sparingly.
as a side note I'd like to see LinkedIn do things like feed me news when a key customer does something news worthy like acquire a competitor or file for bankruptcy or release a new product. I'd like to see LinkedIn interface with my calendar and feed me news and information about the two people i'm meeting with this afternoon and what's going on with their company and industry.... maybe that's a comment i would share on LinkedIn.