"It is difficult to get a man to understand something when his salary depends upon his not understanding it.” – Upton Sinclair

SV makes too much money from advertising to be able to admit the truths about it.

There is no free lunch: https://news.ycombinator.com/item?id=8585237

Advertising is our C8: https://news.ycombinator.com/item?id=10047706