I expect it's because Yahoo! has a good spam-filter and GMail doesn't have any spam-filter (or a very poor one). Any free email service is more prone to spam than an email service you pay for. Only Google can do something about it, not you. Just stop using Gmail if it really bothers you (and be careful where you disclose your email address in future. Only disclose it where it's unavoidable).
Response #1 obviously doesn't use gmail....it seems... Teriwinkle,Are you marking the incoming mail as spam or just deleting it? If the latter...you can expect tons more. You can also create filters in gmail.
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.