Why do you see it as immature? In the real world there is a need to be tolerant of people as you have to exist in the same space. The internet allows us to filter people out so we only come across those we want to. Some people want to be on a site with a range of people, opinions and beliefs, others simply want to spend time with people like them and so block anyone outside of that. It’s not immature it’s simply choosing how you want to use this site and who you want to be around. I used to get into arguments on here and it would upset me u til someone said to me, why have those people as part of your experience? You can choose to only have fun and simply only allow yourself to see people who are also just here for fun. It made me see the block button in a whole new way. You can’t be offended if people block, it’s simply there way of controlling their experience of the site, it’s not a reflection on you