Moreover, some of his examples left me unconvinced. I could only find one petition sardonically suggesting for him to stop developing "useless" software, however... another counter-petition later ended up emerging in his support (https://www.change.org/p/lennart-poettering-continue-writing...). In addition, Ulrich Drepper has received plenty of bug reports that all scolded his behavior, and even Linus Torvalds was the subject of a petition concerning removing RdRand from /dev/random. Point is: controversial people are controversial.
He then goes on to mention the website about boycotting systemd. It's fairly obvious that systemd is a highly controversial piece of software, so arguments against it are expected. I agree that the presentation is pretty off-putting and confrontational, but I didn't see any "personal attacks".
However, the part about hiring a hitman through Bitcoin really caught my attention. That does sound awful, so I decided to look into it a bit.
As it turns out, the story is actually much more tame. What happened was that a few Maemo developers on IRC were angry over the Consistent Network Device Naming feature of udev, trash talked a bit and then went on to different technical topics. After some irrelevant fare, the topic was raised again with the timestamps between 18:21:51 and 20:04:59.
There is no grand plot to kill Lennart. In fact, the word "Bitcoin" was mentioned only once. It's a bunch of developers acting facetious and trash talking, and it's all absolutely baseless. I have no idea why Lennart brought it up. Logs can be found here: http://logs.nslu2-linux.org/livelogs/maemo/maemo.20130215.tx...
Ultimately, I think the whole thing is blown out of proportion, and what worries me is that all this will pretty much end up silencing criticism of systemd even further.