Leaving arduino running 24/7: Bad or good idea?

Using Arduino Project Guidance
1

Is it bad for the arduino If I leave it running code 24/7?

2

Nope.

I have an RFremote control, it runs 24/7. Course its in powerdown sleep mode, but its still running waiting for an interrupt to occur.

3

CrossRoads:
Nope.

Ok cool thanks!

4

Be careful of things like millis() overflows and stuff like that if you're going to have something running for that long.