But I do appreciate the ones that say things like "The first time I made this I followed it exactly, but I like my cookies spicier than this. So the second time I doubled the cinnamon and added 1/2 teaspoon of nutmeg, and they were perfect!"
Or the people who post reviews on the cooking sites that say things like "I didn't have any half-and-half, so I used skim milk, and DH hates onions and garlic and green pepper so I left them out. This was the worst potato soup I ever had!"
Ah, you have just identified my #1 irritant of recipe reviews. "I left out the chocolate chips (diabetic) and substituted oats for the flour (gluten free) and these just do not taste like chocolate chip cookies. Really disappointed."
This is the very reason that I always always read the reviews before I follow (or tweak as I always do) a recipe I see online. You can see something on allrecipes that has 5 stars, but no one single person that rated it that way actually followed the recipe as written, so if I did, I probably wouldn't get a five star rated dish as a result.
I actually get more ideas from reading what tweaks others have made than reading the actually recipe itself (I don't follow recipes, so that's probably why) so I also really appreciate them.