Depends on the type of feedback/context. Regarding regular comments and such on my actual pages/comment sections, the type that I love the most are those that speculate what will happen next! Although posting 1-2 pages a week can definitely be a weakness (especially regarding the slooooow overall pace that the story moves as a result), some of my favorite interactions with my readers were scenes that had a few pages of build up to them, so on each one people would give their interpretation of where the build up was going. A few times even discussion among the readers themselves happend which is super neat~
When initially reading the title I thought this thread was more so about critical feedback specifically, and on that side of things I prefer when people don't hold punches and are constructive. When asking for feedback on how my writing or drawing is going, I don't want something sugar coated- I need a little grit to chew on and improve! Granted it's no good if the person is a jerk about it, but most people offering this type of feedback seem to fall in the other two categories- either too sweet/sugary, or just right and with some kick-ass advice~