Why can project teams not use Discord where a Trading / Speculation channel can be created for the speculators/exchange enthusiasts, and other channels for core project discussion? Projects that use Discord are normally much better organized for their official chat channels. You can create separate channels in the server; one for trading, one for bounty hunters, one for development etc. I feel a lot of conversation is getting lost due to the sea of irrelevant posts on Telegram in every single new ICO I've participated in.
I guess people are looking for easy way to communicate with the team and telegram is including on the list.
The project can manage the telegram group by give some moderators on it to control the conversation in the telegram group.
For me, discord is a bit more complicated rather than telegram.