We planing to programming "forums software" share us your ideas please!

Hello every one,

We have made a lot researches about forums, and we found out a lot of people hate vBulletin even though they already using it, and the reason is that because there are no other competitors in the market.
So please lets Discuss why a lot of people hates vBulletin and what is the most important futures that people will need it, consider about it, and what should i care about to create success forums software.
I have every one open that post will share they ideas and opinions.

thank you,