For example, he accused those who do not support Mir, Canonical's proposed replacement graphical system for Linux, as attacking the project "on purely political ground grounds" and adding that "At least we know now who belongs to the Open Source Tea Party."
Shuttleworth appended a winking emoticon, but few took his comment as a joke. His remarks were widely interpreted as an attack on KDE, which is focusing on supporting Wayland, another replacement graphical system that has no immediate plans to support Mir.
KDE developer Aaron Seigo responded by criticizing Shuttleworth's hostility and challenging him to a debate on the merits of Mir -- a challenge that has had no response.
An even stronger reaction came from Martin Graesslin, whose work for KDE includes implementing Wayland. He wrote that "it is no longer possible to criticize Ubuntu/Canonical for their technical decisions and to disagree with them."
Reacting to Shuttleworth's claim that the opposition was political, Graesslin noted that, "I experienced a strong constant pressure that we support Canonical's in-house solution which is completely unsuited for our needs given their provided public documentation....I had to ask several people at Canonical and people close to the Ubuntu community to leave us alone." Shuttleworth, Graesslin claimed, was violating his own Code of Conduct with his incivility.
A week or so later, Canonical responded to what Shuttleworth characterized as a "sucks site" with a legal notice of violation of copyright. In fact, the site was nothing of the sort -- it was simply a page published by Micah Lee of the Electronic Frontier Foundation that explained how users could prevent information being sent to Ubuntu each time they used smart scopes to search on the dash.
The over-reaction and the singling out of Lee's site was quickly and widely denounced. Yet it took nearly three weeks for Shuttleworth to apologize for both his Tea Party remark and Canonical's treatment of Lee.
Unfortunately, any good such a long-delayed apology might have done was diluted by Shuttleworth's careful hedging and his insistence that only technical critiques of Canonical and Ubuntu were valid. Instead of laying the issues to rest, Shuttleworth only managed to have many criticize his apology as evasive and insincere -- in other words, as one more reason for conflict.