Tingle and I got off to a bad start. I first encountered him, like most of us, in MM. I was ready for some more OoT-like action, and I got more than I could hope for. But as I was exploring, I realized that something was wrong, terribly wrong. In OoT, my maps would be drawn just by entering a new place (except dungeons, but yeah). But now... no maps!?! I met Tingle and found that he had decided to capitalize on my map needs, and was pretty ticked that now I had to pay for something I'd once gotten for free. In talking to him, I realized that he was very creepy. He clearly had some sort of man-child complex thing going on. Plus he had creepy magic words and pranced about. I didn't like him.
But I didn't hate him yet. Years later, when I finally got WW, I was doing my thing on Windfall, when I met Tingle in the prison (that was the first sighting, I think... it's been forever). I am horrified and confused. How in the world did he get here, ages in the future? And why would anyone bring him back? He was a creepy old guy with mental health issues. Later on, I find that he has an island, slaves, and that it's required to pay him lots of cash to progress the plot, and now I hate him. He's the most unpleasant character I've met in games. Really, he should be a villain, what with the slave ownership and all. Worst recurring character ever.
Also, he's in OoA (and OoS? I forget.). Get out of my Zelda, creepy old guy.
However, I wouldn't want him to get the ****-fire someone mentioned above. That's just a little too cruel. I'd rather he be forgotten forever, or just have his own diverging subseries and never reenter the Zelda canon.