As with all things social, linguistic, etc. it's a bit of a question of where to draw the line.
There are an infinite number of ways to say "we need more diplomats", so we can not possible ennumerate those that are fine and those that are not. "lament" per
http://www.merriam-webster.com/dictionary/lament is more strongly than just saying. It is "strongly" or "demonstratively". If you post "we need more diplomats" once, that's not lamenting. If you post it twice a day for weeks, that is lamenting. But there is no precise number where it suddenly becomes lamenting.
