We seem to be doing a great job with random set identification - even correctly identifying a much larger set from a tiny collection of bricks, or reverse engineering sets from MOCs, however I think we're going to hit the limits of our question title creativity fairly soon:
Ignoring the fact that the bricks in this question where from the same set as the matched question (they were from the same user who has clearly bought a bulk collection of random LEGO bags from somewhere), it's quite conceivable that we are going to have people asking "What set is this from" for some time and trying to come up with unique titles for them will be tricky.
While these are questions that we seem good at answering, I'm not sure how good a fit they are for long term storage - the questions aren't typically searchable, nor are they that helpful to anyone else, unless they also have the same set of elements - but they won't be able to find the question as they are typically all variants of "What set is this?" with a picture.
I've retagged "How can I identify kits from a box of parts" as Set Identification which might help, but I guess we need to think about pruning some of these questions...
Also we should encourage answerers of these questions to show their workings, which will people learn how to do it.