I am not surprised. The list of services I no longer use because they constantly email me to generate "engagement" is quite long. And if I get too annoyed (about once or twice per quarter), I make the effort to not only de-register my account, but I often add the domain to my spam filter so I never see email from that domain again.

I just checked and I have a bit over 110 domains in my spam list that look like they were added over the years because of this. So I may have under-estimated how often I "blacklist" businesses like this.