one of the reasons is that i can't post htm files

You can post HTML code just like you can post Perl code. If you need to post so much code that you need an external service, *you* are doing a bad job asking your question. It's got nothing to do with what PerlMonks allows.

(I'm not saying you did or didn't do a bad job asking your question; I'm just saying that you are mistaken in believing that posting huge HTML files would help.)