Somebody is mining directly to FreiExchange. Please stop. They will put a penalty on Datacoin and you may lose your coins. First mine to your own wallet and then transfer to the exchange.
I never understand why that is problem? I mine XPM directly to Poloniex, where I exchange XPM , for years and never have any problem, never have any penalty , never have any issue.
To be clear I am not that person, and I dont mine directly to FreiExchange because I always do solo DTC mining.
Simply put ...
The hundreds of thousands of transactions that occur within the wallet is what the issue is. Some wallets cannot (or will not) handle such massive amounts of transactions to occur smooth, and even if they did, a great many wallets are limited to their functional state on servers that are not the most lightening fast systems to process thousands of transactions in one go. Especially so many that could be small transactions like deposits from mining. That is probably why a lot of large exchanges are in 'maintenance mode' a huge amount of the time. They need to consolidate those transactions (sometimes in the millions in the case of poloniex I am guessing) to a few or possibly ONE transaction in a single block.
The wallet itself gets ridiculously large also, not only in size, but memory usage of the server. Multiply that with multiple wallets in a single server (it is highly unlikely that any exchange uses a single server for EACH daemon/wallet) and you chew into the RAM quite easily.
It doesn't mean you CAN'T mine directly to the exchange wallet, but as outlined above, those are some of the major issues pertaining to mining directly to an exchange wallet.
That is pretty much it in a nutshell. The man hours, and maintenance required to cater for these millions of transactions are what the 'real' issue is in almost any wallet. You would only have a few transactions in your personal wallet in comparison to a large exchange like poloniex, but if you are to assign a visual comparison to it to see it a little easier, it is like saying that your street that your house is located only has a few cars travelling on it at any one time, as opposed to the major city expressways located in the EU or USA where millions of cars travel along those roads every day. The congestion, functionality and maintenance of those superhighways are nothing compared to the little street in a suburb that you may located.
If the exchange has no issues with it though, then there is no problem. Some exchanges however only have one or two people operating the exchange, and so man hours and wallet downtime and maintenance become a problem for them.
#crysx