Maybe you can still remember how you gathered information about stays abroad. The experiences of students who have already been abroad are very valuable for students who are still preparing for going abroad themselves. In the exchange programs, one of the requirements for participating in the program is being willing to share your experience.
Sharing your experiences with future students can also be helpful for you because a stay abroad is usually full of new experiences and insights that you’ll want to share. That is also part of returning home. Future exchange students are an interested audience.