To be perfectly honest, I think this is going to come down to a personal style preference, which is going to depend on the asker/answerer. There are very few cases where the term isn't going to be known to users of the site (those we deem "professionals" and otherwise), and I am not sure that it is really a problem.
For example, if I go to my vet, and say "Oh my goodness my cat is farting and it smells terrible and it doesn't stop, what can I do?" he is going to know exactly what I mean, and be able to help me.
By all means, if the meaning of the colloquial terms for bodily functions and the like aren't clear, ask for clarification, or if you feel like you might know what the OP is trying to say, edit it in, or comment making sure you have the right word.
I don't think we are going to be able to police language use here, and I also don't think we should, in this particular case. I think that we should just let this one be. :)