It is often very difficult or even impossible to locate who currently owns the rights to some intellectual property in order to re-release it legally.[0]
[0] https://www.fastcompany.com/3053050/how-one-company-is-bring...
[0] https://www.fastcompany.com/3053050/how-one-company-is-bring...
It seems petty to me that copyright holders (or their legal proxies) aggressively sought to shut down abandonware sites without any plan to make the software available in any shape. I mean, these were marginal pieces of software, no longer money earners, and the abandonware sites served as digital museums.
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