Ulanopo's farewell post is like a dishwasher blaming the restaurant's failure on the customers
It's management's fault. They didn't provide the tools, oversight, advice, or anything else that was needed to make this place work. Riot's entire involvement has been paying for storage/bandwidth, acknowledging praise in SAS, and Bazerka's lunch threads. The mod team needed so much more from Riot for Boards to be a positive place. Instead, they were thrown to the wolves and left to their own devices, which produced gems like "we're just volunteers" and "that thread's been there for a few days so I won't remove it" and "just ping us in Discord." These are things the mod team chose to do, so they're not blameless. But the fault lies with Riot for never giving this place a chance to succeed.
That said, shouting at the people you let down and blaming them for the failures of those who let you down just makes you a disgruntled loon.
That said, it's not your fault. It's not your fault.