That is if you just assume that everyone who raids is a selfless jackass and doesn't want to put every effort they possibly can to help the whole raid of 10 or 25 to get through the content easier.
I'm glad that your personal circumstances offline give you the time to run Raid Finder. This is not true for everyone, however. Personally I have levelled a second character to 90, and farmed Raid Finder and heroics ever since because my Guild needed a healer and I stepped in. Because I've the time. Others don't.
If people are satisfied with the amount of effort others put into a Guild run, then there isn't a problem. If a Guild has a rather casual stance on raiding and nobody runs Raid Finder, that's perfectly fine. It's not for you - or anyone else - to denounce them as selfish. That's unfair, it's just a game.
So please, if you got nothing else to say except we're wrong and it's completely optional to run LFR, get someone in here who has something constructive to post and is willing to go the extra mile to negotiate for a solution on how to make things better.
It's a discussion. He will say what he believes to be true and accurate, until convinced that he is mistaken. That a given argument has not convinced him personally does not mean he isn't making an effort. People are entitled to disagree. Please stop being so quick to imply others are lazy.
Im sorry but BLIzzard can not act like every form of character progression is optional. Cause it isn't. You will have to do daylies to get valor gear - that means its not optional. You will have to do LFR to get 476 gear (other than extra extra extra rare HC stuff). Any player in the game that does not do this is not only hurting his own progress - but the ENTIRE raid that he is running with.
BLizzard can NOT come here and act like doing LFR and daylies is not mandatory for decent character progression at this point in time. Not with the current tuning of normal bosses. Maybe it will be ok in 3 months time when there are more normal bosses to get items from. But atm... just no.
What I would suggest is for BLizzard to tune Normal raids abit lower and then dont open up LFR at ALL until X amount of bosses are cleared on heroic mode. That also gives the hardcore players more feeling of acomplishment when they are the ones open it up for others.