You do eat the rind of Maroilles if you want too as it's edible.
However whether or not you should eat the rind of Maroilles is a matter of your own personal preference.
If you don't want to eat the rind of Maroilles you don't have too.
Maroilles is a washed rind cheese that has been soaked in alcohol or brine to encourage growth of mold.
The rind of the Maroilles can also add flavor and texture contrast to the cheese.
The cheese rinds that cannot be eaten are waxed rinds, bandaged rinds and bark rinds.
Bark rinds cannot be eaten as they are hard, crusty rinds which are found on some aged cheeses like Romano and Parmesan cheese.
Bandaged rinds are made out of cloth or cheesecloth and are wrapped around cheeses such as Cheddar Cheese and Stilton Cheese and the cloth is not edible.
Waxed rinds are often found on cheese such as Edam cheese and Gouda Cheese.
The wax coating is not edible.
Some types of cheese rinds are edible but not all are.
Even if the cheese rinds are edible some people prefer to not eat them.
Many edible cheese rinds have a strong flavor or texture so you may not want to eat it which is okay.
If you do happen to accidentally eat a cheese rind that is inedible such as a cheese rind that is wax or plastic you likely will be okay but you should not eat inedible cheese rinds.
Most inedible cheese rinds are made from wax or paper which are not toxic to humans when ingested in small amounts.
The cheese rinds that can be eaten are flavored rinds, washed rinds and bloomy rinds.
Bloomy cheese rinds are a key part of the texture and taste of cheese and can be peppery and add a mushroomy flavor.
Examples of bloomy cheese rinds are Robiola, Camembert and Brie.
Washed rinds are moist and can also be slightly gritty and they are washed in a brine solution which can be flavored with spices, herbs, cider, wine, beer or cognac.
Examples of washed rinds are Lissome, Epoisses and Taleggio.
Flavored rinds are made and intended to be eaten and are often quite tasty and common coatings of flavored cheese rinds include spices and herbs.