The number of times I had to yell at family members to NOT CLICK THAT ITS AN AD is maddening. It required getting a pretty nasty virus and a complete wipe to actually convince my dad to install adblock.
The download sites also make the correct arrow smaller and harder to spot so you click on the ad. I was thinking this today: the last thing a download page wants is for you to be successful and download the thing and then f-off