I did a "dirty" bulk about two years ago where I just ate whatever I wanted and didn't track anything, and while I definitely made some good strength gains (except on bench), I felt and looked like shyt.
People telling me I'm getting chunky.
Walking and feeling my gut jiggle
Wearing my pants high up so my man ponch doesn't hang out
This time, I've been doing a much slower reverse diet and bulk, where I track my calories and slowly increase them every couple of weeks, and I've seen my size and strength increase without putting on much weight at all.