Depends on who's saying it and to what, and in what manner (message reaction, its own separate text).
"Hey who wants pizza tonight?" in the group text.
Bunch ofπreactions mixed in with some π and πΊ
That's normal and people agreeing with you.
"Hey could you pick up some toilet paper on the way home?"
π reaction.
That's a neutral kind of acknowledgement.
"Hey man, that was pretty fucked what you said back at the party. I think the others want to talk to you about it."
"π"
That's rude and dismissive, and not just an acknowledgement text.