Thanks for the admonishment, but this is the internet.
This is the Internet, but it isn't 4chan. This is a pretty special place where a lot of very bright people selflessly give of their knowledge and reasoning on extremely sophisticated matters. It has a spam problem, yes, but the last thing we need are posts that blur the presentation line between signal and noise.
As I tried to point out and Jonathan reinforced, a "this is the internet" attitude misses the point. Unity of person is a great virtue and asset in practice and in life. The demeanor of respect one dons for court shouldn't be as detachable from one's person as one's suit and tie. Use of harsh language so casually in a professional forum can be indicative of a basic disrespect or lack of sensitivity.
It's easy to let slip and write something nasty in an Office action reply, and the temptation can be overwhelming. Lucky for me, I've always had the luxury of re-reading my own work and excising before submission anything I've written that was less than polite. I've read a few Office actions on PAIR or elsewhere where other practitioners apparently didn't have the same luxury, and where, needless to say, the result was not beneficial for the client.
"This is [only] the internet" can extend to "This is only the Patent Office" or "This is only the Board," and the danger in lax decorum, like the danger of running an oil pipeline through the banks of a beautiful river, is that despite best designs, it can leak and spread and ruin everything. Better not to build the pipeline through the river.