Since the whole threatening to sue thing will be met with the same fan base response, just like the RIAA, it is certainly not a wise decision.
I don't think MS Office has a similar "fan base" to recorded music. A lot of the market for MS Office is businesses, not individuals. They will continue to buy Office no matter who MS sues because it is the industry standard. If MS started suing businesses for not upgrading to the newest Office version or something then that would be a closer analogy and might cause some backlash.
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Since the whole threatening to sue thing will be met with the same fan base response, just like the RIAA, it is certainly not a wise decision.
I don't think MS Office has a similar "fan base" to recorded music. A lot of the market for MS Office is businesses, not individuals. They will continue to buy Office no matter who MS sues because it is the industry standard. If MS started suing businesses for not upgrading to the newest Office version or something then that would be a closer analogy and might cause some backlash.