Is this right:
Was に used correctly?
The example sentence I saw was:
Japanese Language Stack Exchange is a question and answer site for students, teachers, and linguists wanting to discuss the finer points of the Japanese language. It only takes a minute to sign up.Sign up to join this community
I believe you are wondering if the use of に in the first sentence is correct because the second sentence is not using に in a sentence that seems similar to the first one.
First of all, these two sentences are both correct. Only the difference is that the first one is written in hiragana only, and the second one is written with some kanji.
Now, let's look at the second sentence (Forget the last part of this sentence because it's not related in this case)
The reason why you don't say
おおきい に なります (wrong)
in this case is because
おおきい is an i-adjective.
Here's the rules for
If it becomes i-adjective （おおきい、ちいさい、ながい、etc), replace the last
If it becomes na-adjective （きれい、しずか、べんり、etc), just add
So, the following two sentences are both grammatically correct.