I've heard that IR is really bad. Is it?

IR, or Infrared light, is beyond the visible spectrum and appears as a dim red in the lower wavelengths and is invisible as the wavelength increases. It can be dangerous in high powers, but is not any more or less hazardous to the eyes as any bright light. Many green lasers that aren't sold by reputable companies don't have IR filters. Without a filter, excess IR will pollute the output of the 532nm light. Because many people don't know how DPSS lasers work, they don't expect the IR to be present, and therefore aren't prepared for it. Remember - it's still light, even if you can't see it.