When you are referring to a specific “there,” this phrase can be quite helpful, such as, “There is a man with an ax out there.”  In that case, it would be a good idea to stay “In here.”  But when referring to a non-specific “there,” this phrase is totally silly, such as, “There are a lot of clichés out there.”  With the former, we know exactly where “there” is – it is a place to avoid.  With the latter, just where, exactly, is “out there”?  Maybe it would be easier to first figure out where is “in here.”  Or maybe it would be easier altogether just to stop saying “out there.”  After all, “There are a lot of clichés out there” means the same as “There are a lot of clichés,” only without the cliché.