Riot. Lets talk about the Division 5 safety net improvements. Bring back competitive integrity.

Currently, the way the ranked system works is once you hit a new tier, it is physically impossible for you to demote a tier unless your MMR is significantly lower than your rank. For example, you'd have to have Silver 1 MMR to demote from Plat 5 to Gold. While this safety net is great for people that don't want to stress about being demoted, it is also counter intuitive. Competition is the main purpose of the ladder. I'm sure many people have seen this scenario, but this safety net encourages pretty strange behaviour where someone in division 5 will just spend a season experimenting with a different role/champion while having 0 risk of demoting because it's physically impossible to be demoted a tier. Ranked isn't competitive if people are able to do that. It's also common you'll see many people in the upper tier of ranks trying to climb while someone that is sitting in Division 5 with 0 LP isn't playing seriously because they know they'll never demote.

Instead of completely reverting back to the old elo system, I think a better way to encourage people to stay competitive once they hit division 5 is to make it so people can be demoted if their MMR is 2 divisions below their rank. I personally think this would still be too easy, but someone who goes on a long losing streak usually gets demoted. This should also apply to someone in division 5 if their MMR is a bit too low.