By the way, how do you exactly know where the user got to know about your service, and, specifically, that this spread didn't involve VK?
Initial source was never VK and Russia. Russians is ~1% of Telegram userbase or something like this.
How? By the number signups with russian phone numbers.
By the way, how do you exactly know where the user got to know about your service, and, specifically, that this spread didn't involve VK?