I asked this
same question worded differently earlier this month and got different answers than what you did.
I think that "they" aren't providing good service when the categories are to broad or not broad enough. I guess a happy-medium is hard to find!
I haven't completed my profile on LinkedIn yet. Do they allow multiple selections? Although I've never seen it mentioned in a definition I think at least some of what we do falls under consulting regardless of what service you provide! It just so happens that is my niche too so it works out nicely!
Make it a great day!
Sundi