They make themselves out to be a reliable way to obtain BTC, but can't actually fulfill that role. They make posts here saying that they regularly review cancelled transactions and push them through at the original rate, but rarely ever do, unless it seems it's for a bit of PR.
They role out a failed system and sucker people into using it all the while benefiting from their own mistakes.
This.
Put your faith in
Ycombinator-backed ventures, trust in people who declare themselves "founders" on the basis of having a website and a few promises, and prepare to be disappointed, likely when you'd least expect it.