I always wondered if there is an algorithm behind Flickr such as Instagram has, which puts some photos on top, or longer visible, ... and how the algorithm works to get a better visibility.
There are people who always like to have more views, or likes or comments. For some, it's like a competition.
Personally, I use Flickr to host photos that I post on Forums (to discuss). It's nice to have comments/likes on Flickr, but not my main priority.
(there's aswel some question marks about the value of these likes, as there are lots of people just scrolling and randomly liking photos, without caring or viewing it, just to get likes back in return)
Now... to get to the point.
I noticed, until a while ago (a year?), I had significantly more views/likes than when I post photos nowadays.
Even though I use the same ways of posting them, tagging them, placing them in the same groups, posting them on the same forums, ...
Some people tell me (about instagram) that your visibility grows faster when you have less followers than the people you follow.
Sometimes on Flickr you see people posting lousy photos that get so much likes/comments, pictures that anyone could have taken, there's apparently no much criticism.
I first though that people with a PRO get priority or something, but it happens with free accounts too.