Posts will have to be a minimum of 150 characters.
Please modify this rule. It will increase spamming on forum. Post should be constructive, it doesn't mean people have to write content with 150 characters. Constructive post can be write with also 50 characters. So it's better require constructive post rather than 150 characters.
Best example :
4. There is no minimum length to make a post constructive, but you can expect scrutiny. If you can post a constructive post in 12 words, you don't need to make it longer.
On second thought, I agree with this. At some point, it can be interpreted as contradictory with these statements:
IOU is starting up a 10-week long signature campaign for the quality posters on bitcointalk. If you fit the merit quota, are active and have great posts, welcome!