LinkedIn is for more then just getting job offers. I don't use Facebook, so this is my way of keeping in touch with people I have worked with in the past.

Also, I don't mind getting emails telling me about jobs I might like, but as long as they are targeted and relevant to me. Most of the people sending these emails don't even read my profile.

There's more to linkedin than recruiting.

Issues with that:

1) I started on LinkedIn 5 years ago. I have a few recommendations from former managers/coworkers on there. So even though I don't wish to be contacted by recruiters today, deleting it would be cutting off my nose to spite my face.

2) If I did delete it, then when I did decide I want to start job-searching again, and start a new LinkedIn account, it would be a big red flag to my current employer, assuming I wanted to keep my job search quiet.