Should I post my comic book ideas online?

I want people to see them but I don't want them to get stolen.

Nope, terrible idea, people could take it and since anyone could have an idea, make money from it.

Nope

If you post it I will steal it and make millions of dollars off of your idea.

Then can I at least post a costume I made for an existing character?

Then I will steal your costume idea and make millions of dollars.

do what your heart tells you

or your guts

don't do it

You really shouldn't do that.

Just ask someone you know in person, like a close friend or something.

Naah, wait until you go pro.

That is a bad idea.

Worst idea ever.