Adding my 2sats on the development side.  Having test environments results in better final products for all users.  We are able to test all functions thoroughly, including edge cases that are totally impossible with real BTC.

ealvar13

It's a question I I'd like to ask users and other experienced bitcoiners. Especially why it's important to ship their bitcoin apps with testnet,signet and regetest  functionality. 

Is this question for BtcTestnetCoins - Facilitating access to Bitcoin testnet coins. SN: @asterisk32 ?

In the physique world, one cannot "undo."
In the digital world, you can, and its a huge advantage to be able to do so.

keith_gardner

So why does bitcoin really need testnet, signet or regtest?