True, but one of the Commandments is "Do not steal", and this would definitely be an example of that. My point has been that neither explicit nor implicit condemnation of masturbation is found in the Scriptures; its not even mentioend at all.
As to your own experiences, if you don't believe you can engage in this activity without lust, then that is your choice. I have no issue with stances like that from anyone, but I get irritated when others insist that its a totally-sinful thing to be feared or hated. I think that some Christians believe it not from any Biblical sources, but simply because someone they trusted taught them that way. My mother, for example, caught me in this practice when i was 16, and practically crucified me for it herself (emotionally speaking). I wasn't told why, just that it was wrong...but that only made me think of it as something to be ashamed of, so I hid it from those around me for years, bottling every desire I had because I was afraid of what others might think. In a way, i suppose this eventually served as a catalyst for my now-conquered porn addiction. When a kid is told or shown that sex is somehow "dirty" or shameful, but given no reason, that only makes them feel confused, and they withdraw into sinful habits as a desperate search for comfort. It wasn't until a couple of years ago that I finally started resisting lustful tendencies, and trying to use this activity in a God-honoring way. I don't "win the battle" every time, but my "success rate" is steadily increasing.