Sure as a shareholder I also like stock buybacks. For instance, when Berkshire Hatheway does it, it's almost certainly a good thing.
I don't think that's what we're seeing in the vast majority of cases though. I think what we're seeing is managers personally enriching themselves by taking on corporate debt and doing so in a very tax-advantaged way. Keep in mind they're not buying the stock they own in the first place, they're being given it via stock options at crazy discounts.
If this were true, why aren’t we seeing an incredible surge of shareholder lawsuits? Those managers are ripping off all those long hedge funds and activist investors, and none of them are crying foul?