Trends and popular things are, by their design, things that change and shift with time. Something that was popular a year ago is now considered an outdated reference, a popular meme can outstay its welcome in a month, and minor trends go in and out of fashion daily. Basically, just because something is widely accepted today doesn't mean it will have the same significance after some time passes. Perhaps to commemorate these trends, or just catalogue them for future reference, there are community threads online that talk about the trendy things that likely won't be cool in 5 years' time. One such discussion is hosted on Reddit, where people readily expressed their opinions about what they think won't withstand the test of time.
More info: Reddit
#22
Instagram is going to be an online shopping mall, far removed from the cool micro-blogging site it used to be.
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109points
#25
The bowl cut. For some reason it came back in south Houston. Looks ridiculous.
89points
#27
That stupid yee yee a** haircut that all the teenage boys are rocking. The one with the short sides and mop top rat's nest on top.
83points
#29
Galaxy print is probably going to go the way of the bowling alley carpet patterns we used to wear on our clothes in the 90s. It'll come back ironically in 10 years
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70points
#32
Facebook. Kids don’t use that s***, because it sucks. millennials are leaving in droves.
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60points
#34
Filling wooden furniture with translucent green or blue-colored resin.
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59points
#36
I would say Minecraft but trying to kill that is like trying to invade Russia in winter
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55points
