so say someone has been following a streamer since 2021 and just started subscribing, there should be a feature that allows people to subscribe for how many months they missed during their followage, this could make a lot of money not just for streamers but for twitch, and long time viewers could finally get the badge they deserve for being a long time viewer and support their favourite streamers, imagine viewers have been following a streamer for like 6 years but only have a 2 year sub badge, they could have the option to purchase as many months as they want to make up for what they missed as long as it's within their followage duration. hope this makes sense!