Users are that fast to claim bonus and Stake finds that the telegram bonus drops weren't reaching the right persons. I'm not sure about it, because of the requirements to claim the bonus. Everyone doesn't have the wagering requirements to claim the bonus. The telegram group have got more than 100k subscribers and among them 2000 claiming within a short is possible as said by the above user.
That is the problem with all bonus code drops on Twitter and Telegram. You barely stand a chance to claim it as there are people online 24h and there is a lot of abuse also with bots. It doesnt take a lot of time to also try it if the codes work but even when I was online when they post codes, I have never been able to claim one.
Most bonus code by Stake comes with wagering requirement during the last 7 days. I do not think bots will not work with this requirement. The last few codes even requires level 2 verified and all were claimed fast. If you have never been able to claim it, there are only 2 possibilities. First is that you were always late and second is that you are not eligible due to the requirements.