My utmost goal is to always treat everyone of all ages, genders, interests, etc. (this is in regards to strangers I just meet) with the utmost respect, and I will continue to do so, provided they do the same with me. If we get along, great! We will most likely become good friends. If not, well, people do have their differences after all!
I always take the approach of treating each person as a grain of salt; if they prove to dislike me for whatever reason, then I will simply stay out of their way. However, I have zero interest in quarrels or trying to please someone who simply wants to argue, harass, or insult me.
Online, I don't hesitate to utilize the "ignore", "report", or "foe" options if people try to cause trouble with me. It's really not worth the effort trying to deal with a troll or e-bully directly. I meet these kinds of folk in online games on a daily basis and I think little of it anymore. I just click the ignore button and am done with it. If anyone has played WoW or LoL, they know the kind of trolls/e-thugs that I am referring to. *rolls eyes*
Back to the question though; I'm generally liked by most, but you know the saying, "You can't please everyone!". There is always someone out there that may not like someone else.