[summertime42]

Last 2 gigs were directly through LinkedIn, so to me, it's a huge win. If a good recruiter/lead contacts me, I get their email and add them to my 'rolodex' so I can contact them when I need a future job.

However, 98% of it is total and complete garbage. Unfollow everyone. Follow 2-5 people you actually care about. Ignore spam messages - don't even get emotional about your time being wasted - just delete it and move on.