My apologies if I came off as rude. My point is that there is a ton of bad info on these boards and the only way to side-step that is to learn about these types of products by researching the ingredients. At that point you can then use those products (or not use them) based on whether said ingredients are beneficial to plants.
Example: Someone is raving about some PK booster called 'super bud juice blaster' at $100 per quart. You look up the guaranteed analysis and find it's only potassium and phosphorus. Instead of spending $100 on fancy packaging, you could either go out and buy monopotassium phosphate at pennies on the dollar or use another product that contained P and K in the same ratios at a quarter the cost of 'super bud juice blaster'. Understand my point?