The attitude to these things varies in the community. A quote from Dark Cosmos, by Dan Hooper, mentioned in a previous post (in case you don't remember: MACHO stands for massive compact halo object):
Neutrinos are an example of a dark matter candidate we call a weakly interacting massive particle, or a WIMP. Just like MACHOs, WIMPs are not a single type, but a class of objects. (And just like the name MACHO, the name WIMP is a prime example of the all-too-common physicist's habit of using incredibly childish language to describe their ideas.)
Compare this to how a rather famous physicist describes it, when he mentions the same words as a result of "physicists wonderful sense of whimsy".
When is it funny, when is it "incredibly childish"? Think of it what you want, this is still a part of physics culture that you have to live with. I actually rather like it, usually (although some of the acronyms are a little bit too much).