Yes, he can, but chargebacks are not without risk either - using escrow would be far safer (and faster, if things go wrong).
Is there anything in life w/o risk?
You marry a girl/guy. are you 100% sure that both of you would be able to live together all your life? Isn't there a risk involved?
You deposit your money in the bank and after few days bank gets bankrupt. Isn't there a risk involved?
You are driving on the road & suddenly met an accident. Isn't there a risk involved?
Sardasa, I'm not saying that you will scam, or that rflxso will scam - I'm saying that the way you both were going about this was riskier than it should be. In fact, if you look back at my very first post in this thread, you will see that I criticized both the lack of escrow (which would be a risk to rflxso, if he went first) and the precautions you were taking to protect yourself (which seemed insufficient to me, and so, posed a risk to you).
What else can I take as precautions if I have to sell BTC for PayPal?
No escrow can help as user got 180 days to charge back the payment they send.
You can (and arguably should) report spam no matter where in the forum it occurs.
Its NOT my moral responsibility to keep this forum spam free. Rules are there in place & people should follow them!