I wouldn't say a year is classed as living here and it is possible to do it on tourist visas
One of my mates is leaving Thailand next week after 15 months here on TV and visa exempt. A few border bounces a few extensions and maybe a week or 2 in Cambodia and it's possible just be prepared for a few headaches and always have plan b when you approach immigration at arrivals.
Go and hang.out at a back street muay Thai gym for a few days. Not the fancy tourist places. Get to know them a bit and they will treat you like family. Tag along to a fight night ... temple fairs are great ... It's a good way to see interesting Thai life without being ripped off.
Only a matter of time before immigration reject tourists due to photocopy documents being landscape instead of portrait, passport photo on wrong colour background.etc etc etc 555