Short selling is necessary and good as a stopgap measure, but there's at least one good reason we shouldn't want it to be a go-to reward strategy. Most investments have a bounded worst-case loss. You can only lose as much money as you put into it. Short selling, however, is backwards; you have a strictly bounded best-case profit and the theoretical maximum loss is infinite.

If you know the time frame you expect the market moving news to come out you can go short with limited downside by buying put options. You also get more leverage that way.

How do you get more leverage? Aren't the put options another expense?