Greetings Jdbush2224,
Welcome to the Apple Support Communities. Apple offers some great information about what happens when you report messages. You can learn more here: Block, filter, and report messages on iPhone - Apple Support. Check out the section labeled "Report spam or junk messages" from that page.
Report spam or junk messages
When you use iMessage, you can report spam or junk messages to Apple, which then receives the sender’s information and message. Depending on your carrier and country or region, you can also report spam you receive with SMS and MMS.
A Report Junk link appears at the bottom of any message from any unknown sender.
1. Open the Messages app on your iPhone.
2. Do one of the following:
* If you haven’t opened the message: Swipe left on the message, tap , then tap Delete and Report Junk.
* If you’ve already opened the message: Tap Report Junk (at the bottom of the message), then tap Delete and Report Junk.
* Note: You can’t report a message after you’ve replied to it.
* If you don’t see the option to report spam or junk messages you receive with SMS or MMS: Contact your carrier. See the Apple Support article Wireless carrier support and features for iPhone.
If you accidentally report and delete messages, you can recover them.
Note: Reporting junk or spam doesn’t prevent the sender from sending messages, but you can block the number to stop receiving them.
To decrease incoming spam or junk messages from new numbers, you can filter them. See Filter messages from unknown senders, above.
We hope this information helps you out.
Kind regards!