The information on how savage is handled in terms of when the loot limit gets unlocked, when echo is enabled, and what the provisions are to make it easier without those two functions is not given very clearly anywhere and it would help a lot.

I've been trying to write down information from various sources, but the approach to handling savage has changed seemingly each expansion and isn't even consistent across the tiers in the same expansion.

1) Does savage have "seasons"?

1a) Why isn't there a phased "stat boost" for the community via echo for handling savage after the first six to eight weeks?

2) Is unlocking savage linked to it becoming old content, or is unlocking it a catchup mechanic for people who are behind or just do not want to have to deal with clearing the first three fights?

3) Why is it setup such that after someone clears savage, they still have to complete the entire sequence in order?

4) Why is a type of content that is intended to take an exceptional amount of time also built such that the ease of the content depends on getting stronger gear, which means farming tomestones via roulette that can potentially lead to someone missing a boost, as well as crafted items such as tinctures that require a completely different and tedious skill set to produce?