I release egg caught fish all the time the only fish i keep with eggs are worthy fish cuz i don't need to worry about spawing cuz the stocked rainbows here are sterile. As for destruction of fisheries eggs are by far the most used bait for many species here and fish are kept more often than not, yet fishing for all species continues to thrive. This is because of protection of habitat, low pollution and good management. The first two hurt fish a lot more than the egg sack crowd and some areas are more susebtable to those factors. I don't like to genaralize a certain group like egg fisherman. Like all of society, there are good fisherman and some that are unethical bad fisherman, the ones who keep to many or snag fish. I know lots of people who use eggs who never litter or overkeep or line red salmon and i know ice fisherman who only jig who do the formentioned. I am a avid fly fisherman and some people would assume i am a snob who looks down on spin fisherman, this is not true. Don't base a whole group of fisherman because of some bad apples.