Inclusions usually come from the community - users tend to add products to their stack, a lot of them obviously being OSS. We have tried to reach out to creators/admins in the past to understand if they'd like to represent themselves in the right way in front of a large buyer group.
Apologies Matt - we'd love it if you gave the platform a try, but will not include you in any future email-campaign, going forward.
IANAL, but I think cold emails are still legal in Germany, provided they're not just advertisements (e.g. "someone added you as maintainer of [super awesome project]" is probably OK) and you offer a clearly visible option to unsubscribe (i.e. it shouldn't require posting on a random internet forum to get the attention of a company representative).
In essence, the law prohibits business practices that are an "unacceptable nuisance". While advertising via email spam is clearly called out as such, not all cases are so clear cut and will depend on the judge's opinion of acceptable behavior.
Apologies Matt - we'd love it if you gave the platform a try, but will not include you in any future email-campaign, going forward.