Regardless of how you think HN makes the service free, I'm pointing out to the OP that he is using a service that is free and he is the product. It seems like he is ok with this concept. So why wouldn't he be ok with he Mozilla free VPN concept.
How you are "valuable" as the product is absolutely a relevant distinction to make.
When the valuable part is data collection, you don't get a choice in how your user data is sold.
When the valuable part is influencing opinions, you do get a choice in what you believe.
How you are "valuable" as the product is absolutely a relevant distinction to make.
When the valuable part is data collection, you don't get a choice in how your user data is sold.
When the valuable part is influencing opinions, you do get a choice in what you believe.