I've automated the opposite: three unsolicited mails, and I automatically send the sender's entire company to spam and reply with a friendly request to stop. Three more, and I send an automated cease and desist, threatening legal action (with receipt confirmation requested). If it still continues after that, I actually involve lawyers.

Most people are only willing to do something after repeated attempts because they're polite and want you to stop. If a website asks you whether you want cookies, you only click "yes" because the alternative is more work. If you constantly pester and threaten someone long enough, you'll always get a "yes" at some point. But that's not consent, which is why it's illegal.

Even if lawyers cost money, if I'm just expensive and stressful enough to stop people like you from sending even a single unsolicited message, it's worth it. Time is the most valuable resource we humans have, you've got no right to waste other people's.

I block people on LinkedIn or report them as spam on Gmail if I get more than 3 unsolicited messages. 7 just feels borderline ridiculous.

This reminds me of the parable of the widow and the unjust judge from Luke 18, where the widow perseveres in asking the judge for a judgement in her favor and the judge eventually accedes because he's so tired of seeing her.

(The point of the parable, as I understand it, is not "One Weird Social Engineering Trick That Will Always Get You What You Want!!!11" but rather that we should persevere in prayer and petitions to God because, if even the unjust judge was eventually moved, how much more likely is our heavenly Father to grant us our heart's desire because he isn't unjust like the judge. This is an example of an "a fortiori" argument, https://en.wikipedia.org/wiki/Argumentum_a_fortiori , which are fairly common in scripture.)

This comment makes my LinkedIn make a lot more sense

How much time do you allow passing before each recontact?