Stop complaining about mercy

But it is spam.

How do you consider it not to be spam? It’s the definiton of spam.

unsolicited usually commercial messages (such as e-mails, text messages, or Internet postings) sent to a large number of recipients or posted in a large number of places

It’s spam.

to send unwanted e-mail to (someone)

https://www.merriam-webster.com/dictionary/spam

So should they ignore it if they don’t like it? Or should they actually have a discussion (like a discussion forum)?

The same small group of players are making topics daily. Not just 1. Like, 3 a day.

Go and look at profiles of the people posting these mercy posts.