But presumably lots of people DO like a particular trend otherwise it wouldn't become a thing? E.g the trendsetters saw the first all grey walls a few years ago, their friends saw that and thought "Ooh i like it" and copied it and it trickled down.
There have been lots of "trends" that have come and gone and not made much of an impact, for something to have been a really big or enduring trend, like many of those mentioned on this thread, lots of people must have liked it - that's pretty much the whole definition of a popular trend!
E.g. all the time the shops were selling multiple shades of grey paint they were still selling all the other colours too -but people actively chose the grey presumably because they liked it. Its not as if some arbitrary trendsetter decided grey was in so no other colours were sold and people had to either paint their walls grey or not redecorate.
I don't think many people actively decorated their house a particular way JUST because its "on trend" and they think they should follow it regardless of whether they actually like the trend or not.
Or at least I don't know anyone who has.