[Tom Line]

There are different ways to structure constructive criticism.

Incorrect: HA HA! Your robot broke because you suck at wiring. Come at me bro if you don't like it. HA HA!

Correct: You may have more success if you add strain relief to this point and this point. Also, try soldering your joints as well as crimping them. It can give an added layer of strength to your joints.

One will get people thinking, get a positive response, and generally get you viewed as a helpful individual that has something worthwhile to say.

The other will quickly get you binned as an inflammatory so-and-so.

As a second example,

Incorrect: You're a bunch of old losers trying to relive your childhood through building robots and ordering people around. You suck.

Correct: I believe that student centric teams give students a better end experience and will help them be more successful in the future. I don't understand teams that allow mentors to do the majority of the work.

Tact and subtlety are important. It's also important to remember that the people you are bashing on this board are not just internet posters. In many cases they are extremely successful engineers, managers, and leaders of corporations. You may just end up working for them not so far in the future.