Of course many ISPs block out outgoing 8333 by default . Why do you think we see all these threads where people complain that they are getting only 8 incoming connections on their bitcoin QT wallet? Why do we average less than 7k nodes worldwide at any given time?
https://getaddr.bitnodes.io/Whether it is involves configuring a cctv system or setting up a node from a consumer internet plan most ISPs I have seen require me to call them and specifically request I open up those outgoing ports. Commercial level service products usually aren't blocked by default from I have seen though.
I've noticed certain repeating characteristic in the writing of many members of this forum: they construct grammatically correct sentences but absolutely disregard the underlying semantics: incoming vs. outgoing, local vs. remote, source vs. destination, etc. Here in regards to TCP/IP ports, but I observed that in regards to pretty much any technical issue.
It reminds me of the
http://en.wikipedia.org/wiki/Word_salad , but doesn't go as far in the unintelligibility. It is more akin to somebody just memorizing sentences and phrases without any sort of comprehension, something that actors have to do well.
What would be the real underlying psychological mechanism at work here? Conformism? Or maybe there is a physiological explanation, like some sort of milder
http://en.wikipedia.org/wiki/Korsakoff%27s_syndrome ?
I'm really puzzled, because I've noticed this also in some very visible and high-level people, eg. core developers talking about the hardware design instead of the software design.