Right, a thread like this is a tool and a inspiration for people. It motivates you to connect something with certain changes you regulary apply to dreams. Or in other words, to invent your own spells.
Not to mention that this can increase lucidity. Well before I even made an account on DV my girlfriend already told me about that she applies dream commands, pretty much the same as spells. In her case for example one of these spells is "Exitus", if someone should die but is for some reason really stable against normal attacks. If you get used to use these commands in dreams, within a dream you might start using the spells occasionally, and noticing that yourself might likewise make you lucid.

But yeah, I wouldn't go through the trouble of trying to remember some spells. I would just come up with something that sounds logical to me and thus sticks to my mind by itself.