Today a contact can hold two email addresses: a primary one and a secondary one. That second slot came with the duplicate merge feature, and it already covers the most common case, a donor who used a personal address once and a work address the next time.
Some organizations need more than that. This request is about going beyond two, to three, five or more addresses on a single contact.
What we have heard so far:
Contacts often have a personal address, a work address, and sometimes a third one, and they do not use them consistently. One organization told us about a contact with six different addresses.
The shape people suggest is a simple "+" button to add another address, with a reasonable cap rather than something unlimited, somewhere around 5 or 10.
The goal stays the same as the original request: one donor should be one record, so your reports are not skewed and your segmentation does not miss anyone.
If your organization needs more than two addresses per contact, please upvote and tell us how many you realistically need, and whether phone numbers have the same problem for you. That is what will help us pick the right limit.