That's a great question. I don't think it should be different about dumping one of those pvc fish structure deals and dumping old tires as far as littering goes... I know it's obviously not as bad... but to me there really isn't a difference when you take something foreign to what we are trying to preserve for our future not to mention something that takes hundreds of years to break down, not natural, and purposely dumping it in. I don't think it's really any different than hand feeding deer before you shoot them and call it hunting. I think if you own your own lake knock yourself out but it's about a sportsman like as dropping dynamite in the water.
I got curious and just looked it up and the Indiana DNR's website rules for "Fish attractor" states that "permanent" structures can't be placed in public lakes without a permit from the DNR but most of what everyone drops are the little pvc jungle gym looking deals and that wouldn't be considered permanent so I guess you can.......
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