Can we get more guidance and feedback on the moderation being done on the messages

I have been an active poster on the Excel forum but every so often my posts will just disappear.  Sometimes our message will be there but an attachment will be missing.  Sometimes messages disappear but then show up hours or days later. Can someone PLEASE give us some insight into what is happening.  Is this an auto-moderator or actual person?  Either way can we please get a message informing us that our message is being held or rejected and why.  How are we supposed to learn if we get no feedback.  I don't appreciate spending time re-creating a worksheet (because these new posters aren't even allowed to attach their excel file for us to see) and then create a formula solution, write up how it works and then just have it all disappear.  Makes me think Microsoft doesn't really care for me to help.

And BTW, can you please revisit the reasoning behind not letting new accounts attach files.  Is it a space/size issue?  or is it a security issue?  if the concern is space/size then make a limit on the file size.  Security issue, make a limit on file types.  All this tends to do is force members to ask the user to post the file using a file share service like onedrive, but if they use another service it can be a much larger security risk.