This is really confusing. So you claim it's not your coins.ph account but you sell your BTC to someone for fiat every week? Do you have any evidence to back this up? Is it someone you got in touch with through the forum or in some other way? Do you know him personally?
Its not confusing at all. You have no authority here, and they owe you no answer.
If you feel this person committed a sin of some kind, either report them to the mods or leave the appropriate feedback and move on.
Iron Fist's questions are sounding like exactly backing up OP. Most chance are there for this account to be their alt or friend's or something because this is their 1st post on this reputation board on the exact same day OP is inactive.