It keeps on saying my level isnt high enough. Seriously. How high should my level be just to reply in the class sections?

I have 23 thm 22acn 15cnj 16pug

And none of those are high enough for me to reply? I know those arent that much but those levels are enough to basically contribute something in the discussion forums. Plus how can newbies ask about their classes if theyre restricted in posting?