Mybb question

has anyone ever created a forum or used mybb, I have some customization questions. Also, do you like it. Is there a better free forum platform?

There are all sorts of free alternatives. You could try SMF and phpBB. I have never used mybb but if you post your question I can try and find a solution.

I am trying to make forum viewing fairly linear, and for now not use a portal. Because of this I would like to figure out a way of having a preview of the post be automatically entered in the subject line. Is there any way that someone can think to do that? I fear that people will not use the forum for the intended perpose if they are required to put a subject line, but lack of a subject line will leave the forum unreadable

or does anyone know if this can be done with other forums?