Implantation bleeding misconception

Can anyone help me understand why so many women on here think they experience implantation bleeding? I am not trying to be mean, but rather understand. Less than 30% of women experience it (a few resources are posted below that say so), and that being said, it doesn't happen often. Yet, there are SO many posts on here of women asking. It just makes me sad because I hope women aren't banking they are pregnant and only having spotting or something... it would kill me to get my hopes up and then find out it was my period...I definitely wouldn't use that as an accurate way to predict if you will become pregnant, because it is fairly rare. Just curious what everyone else thinks.