the project you promote 2years back can still come up and give you awesome reward, delays takes place sometimes that makes project team keep postponing listing on exchanges, imagine promoting a project in 2018 paid you big reward in 2020 after you've already zero your mind that it's over? I want bounty hunters in the house to verify this, true or false??
Anyways, do not underestimate projects you promote a year or two years ago, they can still pay up and secondly do not leave or exit their telegram channel no matter how many years it's been, if you do you might be denied of your rewards
For me, the most important thing is not to leave the official telegram because there is a lot of information that can be taken for trading analysis. Most of the developers provide leaked updates of their projects on telegram and it can most likely affect the price in their coin market. Meanwhile, if you have to wait 2 years, it depends on each bounty hunter, I am more concerned with what the developer plans to do.