“Link building” is something I’ve never done in my 19 years of publishing online. In other words, I’ve never spent any time whatsoever emailing strangers and trying to convince them to link to my content.
I have, however, been on the receiving end of many link-building requests. And they’ve never worked on me.
Now, I know there are smart people who work on behalf of clients to get links through these outreach initiatives. Strangely, I’ve never received a link request from a smart person.