Zane Alchin, 25, was charged with using a carriage service to menace, harass and cause offence.
In August last year, he posted a series of abusive and threatening comments to 25-year-old Olivia Melville from Sydney's south.
A friend of Alchin's had taken a screenshot of her Tinder profile and posted it on Facebook, where it was shared thousands of times.
After that, Ms Melville received many abusive online messages from strangers.
