Comments made during last year's contentious same sex marriage campaign have landed 25 people in legal trouble after they were posted online and plastered around university campuses on posters during last year's Australian Marriage Law Postal Survey.

The LGBTI Legal Service will put the culprits before the Anti-Discrimination Commission Queensland after receiving funding from the state government to monitor and identify those engaging in unlawful hate speech during the postal survey period.

Crowds in Queens Garden, Brisbane, celebrate the Yes vote's same-sex marriage postal survey win in November 2017. Credit:Jorge Branco - Fairfax Media

Some of the posts that have attracted the action include: "Burn all faggots #voteno"; "Hitler had the right idea about homosexuals – burn them"; "Send the poofters to their own island"; and "You are all getting rooftopped".

LGBTI Legal Service president Matilda Alexander said more than 220 examples of hate speech had been documented during the survey and legal action was being taken against the worst offenders.