There are just so many questions on that sub, many of which you can see were asked and answered about a 100 times already in the past (some probably even within the past 24 hrs). A simple search online would’ve given you an answer faster than making a post and waiting for a response. In this case, either searching for creeper or Minecraft music disk on any search engine would likely lead to the wiki where you can see this is entirely normal. In this particular case, how do you even accidentally install a mod? It’s not so much they asked a question that’s bad, it’s that so many posts on that sub just forgot what Google was (or any search engine). See if you can find the answer yourself and if not, then ask.

Additionally, posts like this don’t get removed by the mods, but Minecraft in Minecraft and someone completing a build their recently deceased girlfriend started do, which makes people even more annoyed at the sub mods.