Is declining takebacks rude?

No it isn't.
In essence, takebacks aren't even part of the game. Against the spirit of game.

it depends.

obv. mouseslip? sure!
(multiple) blunders? nope.

@Mihir_katti said in #16:
> It is kinda rude
But i do it

Takeback means one thing I'm losing so I'll ask for a takeback.

If someone ask me if they can ask for a takeback I say sure ask it will not get you anything but you have freedom of speech

@cheila said in #17:
> i have move confirmation turned on i consider blunders a learning experience and would actully preffer not to take them back since its harder to rememeber it if i do not feel the pain of the move i play 30+20 but that dosent meen i dont blunder chess is hard:)
>
> abouth acepting take i always accept if promptet unless hes really mean want to win probely i consider the elo or what its called in chess to be a weapon for improving if im good enough to rise in elo i will

I used to have move confirmation but it took a long time and I ended up losing games on time, so I turned it off. But it worked on unlimited, really helped me win

No takebacks allowed. I ask for no quarter and I give none. Mistakes, whatever the cause, deserve to be punished. No mercy. ;)

@sAnDrAiSgOod said in #25:
> I used to have move confirmation but it took a long time and I ended up losing games on time, so I turned it off. But it worked on unlimited, really helped me win

for me it helps alot that i can se the move i make before i make it it helps me make less mistakes i play way to fast anyways and im not saying that to brag i make waaay to many mistakes but where all diffrent:)

Yes and no are never rude.

So once I played a game and my opponent blundered his queen and asked for a take back. I automatically declined but after the game I felt really bad about it. Is that natural or am I just a weirdo?

i wouldent worry to much abouth it it gives him the opportunity to learn from his mistakes and become a better player