First of all, if you are going to give your opinion on something, PLEASE put some logic in it and combine it with some evidence, before shoving it down someone's throat..

Ok...I know that you can literally see their name on the replies, but still...

Ok...So...What should Sakura do, to make you think she is "Useful"?

This guys take it to a whole next level. No matter whatever Sakura does, "She is useless"
And this guy just says it as it is..

Like...Give us MORE "Context clues" WHY.... is she useless?

Why? Just because she doesn't carry a 5m plastic sword In a black poster holder?

Because she is....Um...Flat?

Hater: IDIOT! SHE CRIES LIKE A FREAKING BABY! SUCKURA

Ahem! *Takes a deep breath *

Humans shed tears in response to a range of emotions. These tears contain a higher level of stress hormones than other types of tears.

Crying has many benefits,

I can't see what's wrong with crying..

Even I cry a lot...Problem?

Next!

These people are comparing Sakura with Sasuke and Naruto...

Like...

How is that even a thing?

Sakura' s intelligence, Medical ninjutsu, brute strength, Chakra control etc..( I dont know exactly, but maybe genjutsu too)are far superior than Naruto and Sasuke...

Naruto and Sasuke excell in various other things..

Comparing them to Sakura is like comparing A soldier to a doctor..
Both are important. One fights, one heals..

If throw Sakura in an intelligence based anime, like.. Death Note! She will be valued more than Naruto and Sasuke..

So Sakura's character indeed is important