Let's also take a quick look at what happens when we a strangle instead of selling it:
Much like long options, the enticing attribute of long strangles is that you can potentially make unlimited profit with limited risk (the most you can lose is the amount you pay for it). The problem with this strategy is that the share price would need to have a huge move just to break even. All the while, extrinsic value will decay as time passes causing the likelihood of profit to shrink. Correctly timing a large move in any is extremely difficult. As an added wrench in the strategy, whenever a large move is expected by the market, the option prices get much more expensive. That means you would have to pay an especially high price to buy a strangle in any product where a large move is expected. This is not a strategy I personally use because the probability of profit is too low for my taste. For the sake of knowledge, however, I thought it was worth mentioning.