[Approved] Clean up the sites stickies

I never really pay too much attention to the stickies, but after reading through a couple today, some that are supposed to be updated frequently have not been touched since 2018.

Example 1: Impostor List of WELL KNOWN and/or CREDIBLE members

I understand this example requires the community members to participate, but the last credible post was December 17th, 2018. It looks like a dead thread.

I think that ALL the stickies within the forums should be updated, deleted, and/or consolidated. Also, I feel every subforum should have a sticky. Like here: Miscellaneous Xbox Sales and Services has no stickies. Even a simple thread explaining the purpose of the section would suffice, and other sections overdo the explaining, so I think having at least one would be okay.

Here is another Example 2: Verify the user you are speaking with before trading!

This thread is from 2013, and the code/purpose is for Skype. I do not know a single person who still uses Skype, and this thread could be easily merged with the Discord one.