Eating 5 times a day keeps your blood sugar levels more stable and ensures you feel satiated longer than if you just had 3 meals a day.
It's entirely personal choice. Not nonsense. If it doesn't work for you that's fine. But dismissing suggestions just because it doesn't work for you is unhelpful.
Snacks I have...
Well I do have fruit. Usually 2 cups a day (not including bananas - a whole banana is 2 portions of fruit)
I also have crudites like cucumber, carrot with hummus.
Whole pack of cherry tomatoes.
Turkey roll ups - pepper slices and avocado slices wrapped up in Turkey slices.
Greek eggs - boiled eggs sliced in half. Take out the yolk and mix with 2 teaspoons of hummus. Replace in eggs and sprinkle with paprika. These are seriously delicious and a great way of getting protein in.
I also make protein balls. DM me if you want the recipe for these. They are my guilt free treat. They have oats, peanut butter, honey, chocolate chips/raisins, vanilla essence, protein powder and almond milk.
Tinned fish and cottage cheese. Love the mackerel in tins. Cottage cheese usually has pineapple chunks in for me.
If you ever get sick of MFP, I would highly suggest Beachbody's 21 day fix portion pots. I never count any calories. I go by these pots and they are a God send.