My take: the people posting about success are a tiny and unrepresentative sample — that has been consistent for me across a few different platforms. How do you find safe local dating groups on social media?
One thing I notice: taking a break when it starts to feel like admin is sensible — worth testing yourself rather than taking my word for it.
My take: the goal of a first message is a reply, not an impression — that is roughly where I landed after a lot of trial and error.
If it helps, the slow approach tends to produce better outcomes than the volume one — it is not complicated, it is just easy to skip.