Has anyone actually trimmed the wick of store bought candles? And if so did it help and why tf is it a thing?

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Has anyone actually trimmed the wick of store bought candles? And if so did it help and why tf is it a thing?
I Have It! Now What? Candle Tip #2
OK lovers, you've made it this far and I'm proud of you! Now some little known tips to get the most from your candle! You need to get your wonderful self a set of wick trimmers. "What are wick trimmers, candle mama?" you ask. Wick trimmers are a special set of scissors made to trim your candle wicks and catch the part you cut off! "But candle mama, why do I need to trim my wicks?" A good query, my child! Your wonderful self would like to make the most of your candle, right? And enjoy the fragrance of the wax? Well, if the wick is too long, the wick will smoke, because Yankee Candle wicks are made of 100% cotton. The wick will begin to curl in on itself and the head of the wick will smoke. You cannot smell the fragrance over smoke! Trimming it will also keep your candle burning evenly! Mind you, trimming your wick too short might make it tunnel. Yankee recommends trimming the wick to about 1/8 of an inch, but eyeball it. You'll get a feel for a good length. (Also, its been my experience that the dark colored candles burn funny, so leave the wicks longer on those.)