alt Hacker NewsFacebook chat preceded Messenger which was a rebranding and separating into a standalone app precisely because WhatsApp ate their lunch so bad.
The rates people were paying back then were extortionate - like 60-90% profit margin. When WhatsApp launched, plans were 5-15 euros/month for 100-500 messages with ~0.15 per message for overages. So you might not count the bundle as a per text message, but it really is which you can tell by what happens if you send more than your bundle allowed. Compare that with WhatsApp’s $1/year for unlimited messaging and you start to see the pricing disparity.
Many people were not mostly texting free in 2009. I think you’ve got the timelines mixed up. That started changing towards the mid to late 2010s precisely because of internet-based chat apps on the phone and plummeting data costs making the telco’s SMS pricing plans insane.
Let me preface this with that my experience comes from Sweden in the 90s and 00s, and is a correct and truthful lived experience of my life. Seemingly, things were different were you lived, and that's fine, but that's not how it worked all across Europe, so at least we can agree on that :)
The initial claim of "WhatsApp happened at a time when, in Europe, you paid for SMS." maybe was true in parts of Europe, but clearly not everywhere. People were mostly using the Facebook chat (not Facebook Messenger/Chat) already before Whatsapp started being used, although Whatsapp in Sweden still isn't as popular as in other countries. In Spain, everyone uses Whatsapp, in Sweden, seemingly the people I talk to only have Whatsapp to communicate with me and others outside the country.
> Many people were not mostly texting free in 2009
Most people I knew definitively were mostly texting for free even before 2009, again, at least in Sweden.