How am I supposed to get any sense of a recruiter's skill when they reach out? Do I need to be looking at their LinkedIn profiles to see their tenure? I've dealt with maybe one or two competent recruiters out of dozens.
I would always suggest looking at their tenure. A new recruiter doesn't have the depth of client relationships to be all that helpful, but most new recruiters are 'sourcers' and not handling the client side (they are responsible for researching and bringing in candidates).