Are they the same person, though? If someone changes their mind after reading it a second time, that's one thing. But if Person X reads it through once and suggests you do one thing, and Person Y reads it twice and suggests you do the opposite, that's not necessarily indicative of anything; people just have different opinions.

The thing with notes and suggestions is that, unless there's something glaringly obvious that needs fixing, you're always going to get varied feedback, because it's all very subjective anyway. The thing to really pay attention to is if multiple people have voiced their opinions on the same thing (whether their opinions are praise or criticism).