The major con is the same as meeting people offline. A person has to know them self well enough to (choose) the "right" mate.
Online dating is nothing more than another option or (tool) for meeting others. Much like a fork it can be used to eat a garden salad or a slice of double fudge chocolate cake. However I have never heard of an overweight person blame their weight gain on a fork! And yet people blame their bad dating experiences on the Internet/online dating. (We make our own choices). It's not where you meet but whom you meet that counts!
The same people that are online go to the grocery store, movie theatre, beach, park, nightclubs, shopping malls, and church.No matter how or where you meet a stranger always use good commonsense!
One major mistake a lot of people make is they don't research dating sites before selecting one. Avoid free or super cheap dating websites; they tend to attract the shadiest people. I know there are exceptions. Selecting a “free” online site is like moving into an economically depressed section of town and complaining about the high crime rate.
After I gave this advice to one woman she said, “I don’t feel like I should have to pay for love.” Becoming a member of an online dating site is no more paying to find love than it would be to pay a cover charge to get into a nightclub.Both the online dating membership fee and the cover charge merely grants you (access) to other people who are there. You're simply joining "the party".
I wrote a hub 6 Common Mistakes Women Make With Online Dating. https://hubpages.com/relationships/6-Common-Mistak...