I've had the same Hotmail email address for 21 years in July. Never had any spam to speak of. Been surfing/member of Tom's since right after it hit the web, in a couple of accounts, this being the most recent. Never had an issue till recently, namely my daughter discovered she liked surfing minecraft vids/mods. 3 weeks after she started, now I get spam, the most common being for guys with flagpole issues, the next most common is 'we noticed you visited one of our websites'. Spam emails are rarely personal, more often they are either the result of a Trojan /malware attack or simply 'cold calls' like telemarketing used to be. Somebody, somewhere is getting paid by the vendor to use his pc and run emails to anyone and everyone, starting with easy names like johnsmith@gmail etc.
Tom's doesn't sell emails, they don't have too to make money, they don't need it. Tom's is owned by Purch, a digital marketing company designed to help shoppers make smarter purchases, who you can guarantee does not sell emails either, or they'd be out of business in a heartbeat.
The only thing shady about Tom's is some of the characters the mods have to deal with on a daily basis