Hortonworks Tech Support Engineer interview questions

They contacted me, I was not interested, they told me to contact them in the future if I found a position. I send a linkedin message to the HR who contacted me with the positions I found and got a call from him an hour later and the first thing he did was shouted "stop spamming me!!". How is a linkedin message a spam!! Dont tell people to get back to you if you want to be rude to them. Worst HR ever. I hope they never call me again and I am for sure not applying ever and am definitely not encouraging any of my connections to apply here either.