TS, there is no such thing po as 'Stable IPs' pagdating sa shadowsocks. ganun talaga ung protocol nyan nagte-terminate ung connection every 1min. / kapag na-achive mo na ung 5MB limit per single threaded connection.
Kung napapansin nyo puro chinese ung site ung nag-ooffer ng free access sa shadowsocks dahil un sa GFW (Great FireWall) ng Chinese government, it's more like some sort of help from their community para i-bypass nga ung GFW and to their perspective parang nagiging balakid lang tayo sa objective nila, nakiki-share sa much needed bandwidth. Sinusubukan nilang ibypass un which works dahil sa protocol nya.
So you might be wondering, bakit hindi na lang sila gumamit ng VPN or any anti-censorship tools. Well, they already did and others claim na kapag ginagamit nila ito nagkakaroon ng termination sa connection effectively restricting them from accessing any websites approved or not ng CCP (Chinese Communist Party).