Para sa akin madami nga altetnate accounts lang lalo na noong wala pa yung merit system mabilis lang mag pa rank up kaya pag masipag ka gumawa ng account isang taon lang makakapag full member to senior member ka na na account mabuti rin tong merit system nalimitahan ang pag gawa ng mga alt accounts kaso ang hirap nman mag pa rank up. 
Yes, before merit system has been implemented you only need 240 days to get your account to SR. Member rank and that time sr.rank already getting good income from bounty campaigns.
With the introduction of Merit system, Alts creation and account selling has been in decline and its good for the overall health of the forum fighting against farming of accounts.
Also, the number of "activity" is just the basis in order to rank up. Siguro nung panahon na wala pang merit system, madami pa talaga ang may alt accounts. Plus the fact that it was so easy to register into this forum. Wala pang required na bayad na btc. Good news is, may required amount of btc na in order to be a member. Yun nga lang, may nakakapasok pa din. Let's just hope na they're here to contribute to the forum talaga.
And, Yes @keanne, it's quite hard to rank up with the merit system already implemented pero it's for the good of the forum; to avoid spammers and shitposters. At para matuto din naman ang mga members to exert more efforts and to improve themselves. Let's just be positive about it and let it serve as a challenge for all of us.