Blade Discussion for general discussion, Reviews & Testing for reviews & tests, Toolshed for sharpening and modification, or the manufacturer's forum (Spyderco forum for Spyderco kitchen knives), or the Custom Knives forum if it's a custom kitchen knife.
We figure if we created yet more forums for kitchen knives, whittling knives, rope knives, fillet knives, hunting knives, etc. that would only add to the confusion.