I'm a bit skeptical of the claims he's making in his article, since he has obvious incentives as the founder of a browser company competing with Google. Judging from the amazing features listed on the webpage (bar charts of my history, wow, do not need that at all), I'm guessing his product sense might have some something to do with his companies not working out, not bigger competitors that are out to get him. Can an…
Also, note that Vivaldi is not seeking major penetration in the market. It is "A Browser for Our Friends" specifically because it is folks that want a browser for power users like themselves, not for the everyday Chrome or Firefox folks.
Clearly, you don't know how you harass someone effectively. Break things, and apologize quickly and fix it immediately when they ask about it. (Malicious IT people can do this too!) "Oops, no idea what happened there, sorry, we'll fix it." Accidents happen and all...