Recruitment spamming isn't useful for accessing hiring rate. Recruiters are always building their database of who is out there and gathering information.
I mean building your database via "I'd like to connect" message is one thing, getting specific job descriptions + being asked to start the recruitment process is a bit farther than that. I'm getting about the same ratio of type so far the past month. I'm not saying it's 1 to 1 but these companies are at least still actively hiring, and I have no reason to doubt that based on my company doing the same.
Gathering information is the recruitment process. It's just used to filter the good candidates out of bad candidates. The process is further used to get a valuation of what each candidate is willing or desiring to be paid and this is the main reason recruiters will always be working. I'm still being spammed as well and where the recruitment process is part of the spam. I work in academia which I enjoy and I'm not looking to leave my job but I do think the actual hiring will slow somewhat down. Too early to predict how much in all areas of engineering but I assume in a few months we will see.
