The post I speak of is below.
Whilst OP has hardly been perfect in their articulation of the question, it does to me seem to be clear what they're asking. They want to know about what the discovery of the Pentaquark means for physics.
Popular media has been reporting about the discovery of the Pentaquark in CERN this July. For those of us who watched much of the Higgs Boson media campaign, it's reasonably obvious that the reporting of big physics news in popular media isn't exactly precise.
My point is, that for those people who want to know about more exact implications of such discoveries on the Physics world, they might come here and ask questions. I'm guessing that that's what OP was trying to do above.
I have a bit of a problem with comments on the question like these:
While I was first tempted to answer this in more detail, I decided to merely point out that it isn't exactly a physics question. "Significance" is primarily a matter of opinion. Was it necessary to search for these states that are being predicted by the standard model? Yes, it was absolutely necessary and it will be necessary to check the prediction against the measurements to see if there are significant discrepancies.
The QCD still works?
"Is there a theory that it supports or something like that?"... Yes, the theory has been around for decades. It is called Quantum Chromodynamics and it is part of the Standard Model. Pentaquarks are not a surprise and we do not need any new theory.
Someone's genuinely curious about the wider applications in Physics that a discovery might have.
Particularly the way in which this question has been answered, to me, seems condescending and disparaging. Perhaps if the more knowledgable users in the community are not willing to read into these questions to try and work out what OP is actually trying to ask (albeit without much finesse), they should keep the unhelpful comments to themselves.
I'm not really sure what solution I'm proposing here. I understand the frustration when someone asks a vague question, but answering it with pointless comments which can be interpretted as condescending seems to compound the problem, not help. I hope this doesn't appear to be a rant about a specific case, either. This is just a recent example which I'm using.