I couldnt do anything because of all their players attacking me and my teammates not doing anything to defend

As much as it sucks, I don't think the forum should be a place to complain about your team mates. Nobody does "nothing" in team games and this is a terrible disservice to others' contributions (and thus incentivizes them to perform less). The proper term is and should be "not enough" to prevent grievances. (There's miles of difference between 'you didn't do enough', 'you could have done more', and 'you did nothing')

Further more posting something like "this is why you shouldn't play team games" is a pretty terrible statement to make and is not true, kind or necessary. This does not help community image at all. Instead of complaining on the forums, offer CONSTRUCTIVE advice. If you feel that you could not do anything because all of their players were attacking you, offer a solution next time in a format that isn't aggressive. "Next time we should try building defenses up front so I can focus down the enemy" is an example of this.

Remember: THIS FORUM IS THE FIRST THING PEOPLE SEE.