Putting my tinfoil hat on for a second, I wonder if (and how much) post selection is tuned to maximise advertising revenue. To give a crude example, if I see l

Putting my tinfoil hat on for a second, I wonder if (and how much) post selection is tuned to maximise advertising revenue. To give a crude example, if I see lots of posts about people enjoying expensive holidays, I'm probably more likely to click on related adverts. The effect of advertisement-funded media on the style and content of programmes is quite well documented. What if social media had a similar effect on how we perceive our relationships?