LinkedIn manners
Software development is a creative and challenging craft. It's demanding, ever-changing and scary at times. A huge demand for devs, admins, network engineers, testers, etc. surrounds us. Many people are working hard to get most out of this opportunity.
Sadly, manners of some talent sourcers are appalling.
It all went wrong
So you are a SW developer/engineer who is also on LinkedIn. Congratulations. You probably have a couple of hundreds or possibly even thousands so called connections, i.e. people whom you've never met or talked to, not once. Most of them are in your network under the pretext that someday, somehow, they might be able to help you land your dream job (as if those things were real on this planet). You connect with one of them and all of a sudden your inbox is filled with invites to join networks of 42 other Agent Smiths. Networking 101, right? No one cares you aren't seeking a new job! They simply want to collect you or perhaps your face popped up as a result to a single keyword query.
You know who I am referring to. People living under the impression Scala is the issue tracking software. Spam you with completely irrelevant <insert programming language name here> vacancies, although all you know is a language with such name exists. Present junior roles to seasoned professionals and vice versa. Send you "exclusive" job offers which are freely accessible on the well known aggregator websites. Lie to you how super cool it is to work for that friendly company with 30% employees fluctuation. Consider lower than average salaries as "competitive". The list can go on.
The Gold Rush
Recruiters. Their army is about 50 times stronger compared to the SW developers (and IT guys in general) tribe. It's The Gold Rush all over again. Chunky referral rewards payed by the rich IT companies are hard to resist. But also hard to get I guess.
The thing is, there are only a few professionals out there who actually know how to use their shovels and aren't pushy as hell. Recruiters who read your profile prior to contacting you and are clever enough to extract required information from your (well prepared) LinkedIn profile instead of asking for a PDF resume. Better yet if they are knowledgeable about the domain and/or languages/technologies and can prepare you for the interview process and collect feedback afterwards.
I am lucky enough to know a couple of really talented hiring managers. Though, it's difficult to keep a positive mindset towards their occupation because of practices described in the first part of this post.