Almost every ICO is using telegram, which is a good idea.
Actually not just almost every ICO but all ICO Projects. Telegram is very useful that makes each and everyone of us comfortable and easier to communicate those different ICO projects to be always update on their every announcements or some changes that may apply on their projects. Also, it gives those users to joined their telegram which to be part of their telegram campaign.
Its not only for easy communicate to team but telegram also can be used to judge the project has good support or weak.
More people in telegram group and channel, people think that the project supporter is more too and investor will thought confident to join in the project.