It's not like that, you can post shorter post, as long as it is not a spam or "mema" lang... But you can make it a practice, para masanay kang mag express na hindi lang tunog "oo o hindi"...
You need 30 para maging junior, magagawa mo yan sa loob ng 6 weeks... Then the next rank(member), double mo lang and same as the next...
para mag progress yung activity ko or may posibilidad po ba na hindi mag rank up or ma banned pag kinulang sa post ?
You only need to post atleast once a day, pareho din naman result niyan kahit mag post ka ng hundreds sa isang araw(which is very obvious na mapagkakamalan kang spammer)...