You missed whole point. Nobody here against Bitcoin fees in common. But many people (and scripts) confused when sender sends say 1 BTC, but receiver gets 0.999 BTC. Deducting fee from transferred amount is bad!

I already do my leaving being a Bitcoin merchant. You comment is senseless.

Yes so it is "user" error...that doesn't help this guy and other businesses who might take BTC.  A lot of people are rather dumb and they can't handle anything but the simplest payment process.

It is likely from some kind of exchange or pool that allows for customers to withdraw a certain amount to a certain address but will not send the entire amount.

Either that or the OP's customers do not understand that the miner's fee is the responsibility of the sender. Considering that the fee averages ~$0.06 per TX now I would really not worry about it that much unless your average TX is very small.

As said above since the fee is so small presently for most transactions the merchant should just absorb the TX fee as a cost of doing business. This would likely be less then accepting any other form of payment.

What do you mean, so they don't send you the full amount, because the client deducts a transaction fee? Man, that's messed up!!! That's not the way it should work!! Could it be that those people are just trying to scam you???

You must be mistaken.

Yes I am. It must be read 4 years.

If the fee is above the standard amount per kb (even 3x the standard amount at current levels) and the total fee is less then $0.50 then you should almost certainly absorb the fee. If the buyer would send some crazy amount for a fee (.5 in your example, or even .05) then I would reject the transaction and have the buyer resend the proper amount. A .05 fee would come out to roughly $30 which at this point is much more then the cost of doing business. You are correct in saying that the fee is set by the sender, but if the fee is reasonable then you should accept it.

If you owned a physical store would you not sell a $359.95 widget to a customer because they were short $0.25 when it cost you $200 to make the widget including advertising and all other costs?

I see a lot of sites that when you try to withdraw your bitcoin they deduct the fee and make you pay it. I guess someone has to pay it so if you're selling something you should make clear who has to "eat" the fee.