Is it impolite to crosspost someone else's post to another community on Lemmy without saying anything?

https://piefed.europe.pub/c/asklemmy/p/266879/is-it-impolite-to-crosspost-someone-else-s-post-to-another-community-on-lemmy-witho

Is it impolite to crosspost someone else's post to another community on Lemmy without saying anything?

I feel like on mainstream social media this is done pretty thoughtlessly and it's a norm but on Lemmy, with the much smaller userbase, I kinda felt…

If anything, I’d prefer to see people cross post from small communities to bigger ones, since they will give exposure to the smaller communities. But the meme and news comms are already pretty big, so cross posting from one big group to another just feels like cluttering up people’s feeds with duplicates.

Agreed. Thou it doesn’t really reply to OP question about “asking for permission”. The advice given here is more in line with the netiquette of crossposts overall, and shows one special case where a crosspost could be undesired (not by its poster but by all users.)

Other than this, I don’t think there’s anything wrong about using the feature as it is. I actually find OP question quite “absurd”, like for me the answer is obviously not wrong.. just use the feature in the software (lemmy)

Sorry. Addendum: I see no issue with cross posting without asking. We post to get our message out there and cross posting aids in that process. I like that seeing our posts have been cross posted is easier to see these days on web Lemmy and many apps, as if my stuff is cross posted, I just like to know about it so I can answer any questions, since I focus on more educational subjects.
Yeah, photon frontend for lemmy is great in that regard. I can see a collection of threads of all the crossposts altogether in one page. Lovely! (except when the number of comments was too high everywhere haha!)
Yeah I was thinking that maybe it is absurd. The crosspost function is there for a reason. But I still felt unsure on if there is some netiquette that I’m unaware of.