It’s an unfortunate byproduct of allowing patents to be bought and sold. Let’s say you had a patent: you worked hard on your invention and you deserve to reap the financial benefits of it. But you do not have the legal resources to protect your right as the inventor. It feels fair and reasonable to me that you can sell your patent to a third party to license and protect as they see fit, so you can reap some financial reward.

Now, how do you make sure that these companies buying patents don’t become trolls? I don’t think it’s fair to require them to use the patent, because that limits who the inventor can sell to. Personally I think the way IP lawsuits are filed and considered needs significant reform.