How To set Limitation .....

Some users making spam topic, they want to fuck forum like this pic :

so I want to make limitation for topic Creation,

for example user can't make more than 90 charactors, :-)

Check $topic_max_length option and don't forget to read manual from time to time.

Check $topic_max_length option and don't forget to read manual from time to time.
Thanks Mr.Paul @};-