Also web hosting doesn't cost much when your website is well made with some frugality in mind.
And there are also better, cleaner ways to make money on the internet: getting rid of the ads and spam and having the content accessible to paid members.
I am somewhat curious to hear more about the better and cleaner ways to make money on the internet, but I have a suspicion that in some circumstances (such as recipes) they may put you at a competitive disadvantage. I certainly have no desire to pay to access recipes I find via Google searches.
Detect sales/commercial language and structure,* and specifically target that for removal from results as if sales-oriented sites were hardcore porn and the child safety filter is turned on.
*Buy and cart buttons/functions, tables containing prices with descriptions but don't look like long-form reviews (which would be it's own filterable tag), etc, and domains trying to obfuscate are blacklisted permanently.