Are MAIDSAFECOINs on Poloniex real Safecoins
You have the correct flavour as MAID but strictly, those are just a promise by Poloniex to give you MAID when you ask for them, in the same way as a bank holding your money.. it doesn't exist.
Reasons not to hold coins in exchanges are numerous previous failed exchanges. Poloniex is one of the better ones I've seen but still.. trust what you control.. if you do not know the private key, then you have nothing.
Important when MAID are exchanged for safecoins on the network that you hold those in your own wallet, as otherwise you are gambling that the exchange will manage the change for you.
You can send MAID to any BTC wallet address. Being Omni token, it is on the BTC blockchain and the balance is a sum of transactions, just like Bitcoin BTC.
https://www.omniwallet.org/ is useful for seeing your balance and sending Omni assets.
I'll take this opportunity to suggest Omni is on Shapeshift now https://shapeshift.io/#/coins