[chad1n]

I wonder how much LimeWire pays to buy all of these foss projects, must be a decent amount if everyone is selling his solution

[Etheryte]

Wouldn't be surprised if the prices are fairly low actually, I would wager most of these projects make no income.

[grimgrin]

limewire aint touchin soulseek

and it has people building alt.clients

    https://nicotine-plus.org
    https://github.com/slskd/slskd

(though these are not webapps, which was your main shtick i'm sure)