Thanks, here is my understanding about the use of the preposition "the":
-The first one, "the" is used to indicate that "there is only one". In this case, you consider "other posts" as an unit, and therefore, "the" used to mean only one as in the moon, the Earth,...
-The second one, "the" is used bacause reader knows exactly what you are referring to.
Is this right?
I feel confused.
Read the other posts in the forum and you will see the types of question we deal with.
"the forum": here is Usingenglish forum
"other posts in the forum": any post in the forum excluding the post you are responding
"the other posts in the forum": use "the" to mean all post? I am not sure about this.
"the types of question we deal with": I am still not sure about this. Does this mean that there are many types of question in the forum and only some of them can be deal with?