I think a certain level of snark is acceptable as long as the poster correctly answers the question. A LMGTFY answer can be complete and correct, but often it’s not, as there’s some nuance to the question or some expert interpretation required of the answer.
I agree that GQ priorities are delivering the answer and educating the OP on how to get the answer. Snark is incidental and fine in moderation, but inappropriate when coupled with a wrong or incomplete answer, which LMGTFY often is. There are certain posters who seem to value snark above actually being correct. That shouldn’t be encouraged.