I'm inclined to add everything I can find, including the 185 from the other feed you identified. It's a service to the community; I find it hard to imagine that anyone would object...
I think generally the linking of databases tends to raise privacy concerns. It is not obvious to me whether this is in principle permissible under the GDPR.
We seem to have moved a fair way from the earliest comment What's not to like? If someone doesn't like it, they can leave it blank.
I don't particularly want this on my own profile, but I'm happy enough to edit it out again if I have the capability to do that. To me it would seem rude if the system added this to my profile without my consent or opt-in and did not give me the option to remove it.