What's your definition of a "Bad Internet User"?

[Creative eye©]

Those who doing harm to others is bad user .

[Warrior]

Someone who harms himself in someway.

PS: By harming others too you harm yourself according to the law of Karma.

[ᴘɪA]

A person who hardly uses it...

[Bob Bob]

One that purposely hurts others for their enjoyment and is rude/abusive.

[deideiblueeyez]

Trolling mean and useless crap, as well as being rude and belligerent without provocation. Also, spelling terribly when there are plenty of characters to use. The whole internet is NOT Twitter. U dnt hv 2 typ lik dis to get your point across. Many of your useless replies will be less than 100 characters, and the maximum for one post is anywhere from 250 to 1000. So smarten up and use ALL the necessary letters on the keyboard, for God's sake.

[Miranda]

a trouble for someone else

[melisa]

An ABUSER.

[Cynical_Student]

Someone who:

Spams/Trolls
Uses the internet for illegal purposes... or dubious purposes (legal highs etc)
Scams people out of money.

[Anthony]

A Spammer, That Is mean and hardly doesn't do any work, Offends you, And anymore bad things that a person can do on a website.

[Y]

There isn't one.