yes. it is bad because it makes your marinade have a thick consistncy.
You can actually. But know that boiling such may diffuse the taste and so, it might taste different should you choose to use it.
In my experience, it is better to leave the marinade on for cooking. Depending on the marinade, it will glaze on the meat and enhance the flavor.
Boil what?
Once marinade has had raw meat soaking in it, for health safety reasons it's crucial to bring the the marinade to boiling if you wish to use it as a sauce. You could pour it into a saucepan, bring to a boil, lower the heat and then add ingredients (such as a splash of wine or a little cream or butter) if desired. Simmer sauce to reduce it to the desired thickness.
One tasty way to cook spare ribs is to simmer in a marinade and then grill. This is great for barbecued pork, because it is a way to add flavour, ensure they are fully cooked and keep them moist and juicy but with a crispy grilled finish.
A brine does not necessarily take the place of a marinade. A brine can add some flavor and saltiness. The brine is also generally something you do before cooking while a marinade is something applied at the end or after cooking is done.
Yes. For 6-9 weeks.
A fine tangy tomato marinade enhances the flavor of your meal, leaving you with a flavorful batch of rib tips.
No, the idea of a marinade is to infuse the meat with flavor. If you then cook it in the marinade, it will be too strong a taste. Plus, it'll boil, making it pretty tough. The exception would be braising, which is slow-cooking at a low temperature in either wine, stock, tomato sauce, or combinations of them, with some chopped aromatic vegetables and herbs. In that case, you simply brown the meat (some don't) and put into the liquid to cook. Technically, this is cooking it in a marinade.
yes, as long as it's refridgerated
Yes, it is recommended to boil water before adding pasta to cook it.