I agree that they should give a reason. I wouldn't want an email for every rejected submission, but a simple note in my Activity list would suffice. David (124 months ago, Mar 29, 2014, to Catalog)
Warning: You have exceeded the maximum limit for posting to the forum within a normal timeframe. Your last submission was not posted, and you are banned from posting for a few [...] (41 months ago, Jan 1, 2021, to Catalog)