I am sharing about 25 albums on soulseek but my uploads are empty which as far as I know means nobody has tried to download anything from me. I don’t have port-forwarding available to me, I use a VPN, and I am periodically offline. Is it really weird that nobody has downloaded anything from me or is that kind of normal?


Nope, the port can be open on either the downloader or uploaders side. It doesn’t matter which. Only one is needed.
Are you talking about torrents or about Soulseek? Soulseek doesn’t use DHT nor PeX.