In 8 years no one ever asked me where I heard of them…. occasionally a program will have a box where you have to check something or click “other” and add your own – I don’t like filling forms and want to move on, so I check the first thing and move along.
I also have never clicked a banner to go to a new aff program. I see the banner, I look at their forum to see what’s being said and then type the name in my browser.
Now everyone has different habits online, so thats just me.