Wow, as someone who worked at the original limewire back until we got sued out of existence, this makes me sad to hear some scammers bought the IP and resuscitated the corpse of the company.

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

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

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)

Yup. I recommended snapdrop to everyone in my family and friends for local data sharing without a cable.

When I discovered that it now uploads stuff to Limewire I was so annoyed that I had to admit I suggested a harmful tool for sharing private data. So much, that I will never recommend a similar website. Either I'll host it my self or suggest an installed tool through F-droid, if it exists.

I mean, it is entirely my fault. I knew the security risk, but set it aside, because I didn't think some known guy developing an open source tool would in his name try to grab your data.