Some people like them. I actually sought them out. I started regretting that when they got out of control. I've yet to see any benefit to having them. I've read that anaerobic bacteria is something that most of us will ever experience. My tanks still have algae. I just hate the things after dealing with them for years.
The people giving quick easy solutions to getting rid of them are either just repeating what they've read without personal experience or, for whatever reason, don't have them breeding out of control.
I see people doing RAOKs for ten babies they found floating and have to laugh. In a 55 plant only tank with no food added I've got hundreds of babies floating every day.
The assassins are in that tank now taking care of business. You'll hear positive reports about them, but I thought I'd let you know there is another side to the story.
Malaysian Trumpet Snails: JUST SAY NO!