Mostly either offensive or presumptive e.g. "anyone who uses .Net is stupid" or otherwise where the conclusion is much more dogmatic than the logic so it reads

Mostly either offensive or presumptive e.g. "anyone who uses .Net is stupid" or otherwise where the conclusion is much more dogmatic than the logic so it reads like arrogance. I wouldn't downvote someone who said something like "Shouldn't we all make time to ensure our code is always secure" (even though this might not be realistic/true) whereas someone who said something like, "Anyone who doesn't make time to ensure their code is always secure deserves to go out of business" implies that it is always possible to secure all code; that people choose to not secure certain parts; and therefore they deserve to fail. I am more likely to downvote this. I don't mind opinions though so if someone said "I always use PHP and it has always been fine", is no problem even though that's not my experience.