It would be easy to conclude fake id sites that do not disclose their location are in the USA. These few sites make poor quality ids, if they are not an outright scam. They usually have flashy websites, and take obscure payment options such as "reload packs" for reloading prepaid US credit cards. New laws in the US require your social security number to purchase these reloads to keep track of who are purchasing them. In the rare chance the site is genuine, buying a government tracked card for purchasing a fake id is pure stupidity by the vendor and customer.
If the answer to either question is yes, then think about the state you are ordering. 5 people showing up to a club together all with the same out of state id? What do you think the bouncer is wondering? It is law that when you move to a state that you obtain a license from that state within 30 days. Who knows how many comply, especially if you are in that state for college. Most will wait until the license expires before they get a new one in the state they are in. If you are lucky, and the identity vendor sells a fake id for the state you are in, and it will pass in-state scrutiny, this would be ideal. When this is not the case, it is best that your group does not all choose the same state fake id.
Yes, for several reasons. It is common for a bouncer to ask for a second piece of ID with your name on it. Easy to produce when using your real name, such as a credit card. Unless you are always planning to pay in cash for your drinks, you would want your fake ID to match the name on your credit card. It woud be a real pain having to carry your real reddit fake id to match your credit card, if a bartender or waitress asks to see it when paying for your bill and you already showed your fake id to verify you can order a drink. Another reason to use your real name is you will not forget it. It is very easy to trip up a person who has had a few drinks.