I just found a fantastic expired domain, aged 14 years dot net, with a small link profile, which were ALL relevant to topic and had great metrics. It is a 20k monthly search, with an overreaching broad spectrum of topics. I am using an ambiguous keyword and wanted to go the direction of a magazine site for plenty of interaction. Can be used for different t things. Example: turbo can bring turbo charger results and turbo tax. The question, is how will Google see these irrelevant backlinks, and will I be penalized or anything negative?