It is allowed. It doesn't look like you've read anything at all; from the link I posted which is worth reading for your benefit:
"First, let me make it clear that neither I, nor the person who pointed you here, has an issue with cross posting, so long as it is done correctly."
and:
" If you don't get a satisfactory answer in a reasonable amount of time (days, not hours), then:

Post in another applicable forum with your issue (1 or 2 other forums, not 20!).
Include a link to your original post (see below)."

but finally, to help everyone on all the sites:
Quote Originally Posted by p45cal View Post
but if you were to give links to all sites you've cross posted this to, at all the sites you've cross posted this to, I, for one…
and for your information, when I first started posting to forums, I was as guilty as hell of cross posting!