"Why to have any SP?"
"No more alien romances!"
"We should be the vilain!"
"Don't do any romances at all!"
"All I need is PVP!"
"Do we need a plot?"
All of these seem like perfectly defensible positions to have. Some people might like multiplayer a lot more than singleplayer. Others think the concept of alien romances seem far fetched or that romances in general have been poorly executed. Some want to be someone other than "the glorious savior," and others just want to create a story of their own. Or maybe, everyone has their own annoying prejudices. It doesn't matter, this is a general discussion forum, and as long as there are reasonable discussions happening then everything's fine.
I don't necessarily subscribe to one or any of these beliefs, but I won't criticize anyone else for having them. What I will criticize is attacks against one another and endless meta-complaints. We're all guilty of it, and it won't stop by just looking in the mirror. I'm sure everyone here wants the best for BioWare and Mass Effect, but exactly what that means varies from person to person.
If you want discussion about different subjects, make it yourself. It's an open forum.