Those who have a repository somewhere and don't want to accept changes to their repository but at the same time don't specify this somewhere, are insulting other people and wasting their time.

Some examples:

https://github.com/moshesipper/tiny_gp/issues/2

https://github.com/soroush-app/bot-python-sdk/pull/20

https://github.com/prp-e/8bitcomputer/pull/1

https://github.com/PilzAdam/mobs/pull/9

Note that regarding the last one to PilzAdam's repo, I don't think he is to blame as it seems that he has left.