For the Christians, what did you think to join this religion?

As an atheist I find it hard to believe the principles of a 2000 year old book. Why did you guys even go into this religion?

I'd think for most people habit.

For other people such as converts, I'd imagine the truths/practicalities/winsome appeal of it's ideals.

All the moreso in times when knowledge and learning was scarce, I'd think.

The modern first world era is not like that of old, where people received public education, public libraries, literacy, internet, Wikipedia, and DebateArt.

Maybe wisdom and common sense of a refined type was less common.

And religion could oft open people's eyes.

80% of Christians are baptized as infants.  The overwhelming majority of Christians were born into the faith.

so tradition?

yep its tradition and always has been for millenia

there was also a sense of community with Christian

People 'can have a sense of community without religion.

People cheering for High School football team.

Online guilds in video games.

Debate site groupings.

Not that such removes community being one of the reasons Christianity was valued/successful for many people.

Most if not all religions have a sense of community.

A lot depends on where one is born.

there are things that look like miracles that happen to christians all the time. from what i can see, it's very hard to find examples of miracles happening to other faiths, and it often involves funny business. and we never see miracles or things that look supernatural happening to atheists... if you can find some examples, let me know, but ive offered that challenge to skeptics many times and they always fall short. jesus said you should at least believe in him for the deeds that he does. plus christian imagery is common in near death experiences... and when it comes to atheists, most are just ignorant or stupid when it comes to understanding that stuff. like atheists think people experience elaborate afterlife stories when they die? atheists think humans are just advanced biological robots? really? there's a lot of stupid stuff that atheists believe, lacking common sense. plus there's a good message at the heart of the gospel... Jesus taught a kingdom of love, and the golden rule which everyone can understand, and there's hope for an afterlife and an answer to the meaning of life too... this is great news. 

im not talking about communities like video game groups, im talking about suburbs and christian church community

yes and reliigon does that

Community under the name of religion....Though communities can function without religion. 

 What is this "good message"? 

Are you suggesting that no can understand or experience love unless one becomes religious and believes in a god? 

Just because someone says there is an afterlife- if you are religious  and believe in god, obviously - doesn't mean that there is one.

Oh I can agree on that. The bible itself makes perfectly clear the reason for which we were created; " there was not a man to till the ground."Genesis 2:5 , which amounts to slavery. Odd isn't it that scientist say that the planet and its ecosystem would do perfectly  well without man being on it: 

No it isn't, slave.

thye can not