can you still get alerted by the scratch team or blocked even if you just interact to someone with “yes” or “no” nothing else

I think it depends on what specifically you are responding to.

if saying “yes” or “no” somehow breaks community guidelines, then you might get alerted by ST

axalotlautomaster_2 wrote:

if saying “yes” or “no” somehow breaks community guidelines, then you might get alerted by ST

I think that pretty much says it right there.