Because some people like to troll people and say nothing productive at all and think they're awesome for doing so.....welcome to the internet =D that being said.... now onto answers =D
1) sd card
2)you can uninstall bloatware, speaking from experience I had everything uninstalled and my phone rooted and I did an
OTA update and kept root. sure all the bloatware
apps were back, but I just uninstalled again. good to go.
3)Titanium Backup Pro is well worth the couple bucks for your coupe hundred dollar phone, sure there are free options, but this make SUPER HUGE shortcuts and is really really easy to use. the free
apps make you go through TONS of steps to do things and you will spend tons of time doing things compared to 2 seconds with TBPro. Get AdFree, blocks all adds (you need to update the free version constantly) but hey its free, other than that, just go to Android market, search "root" or "rooted" and just start browsing
apps =) LBE PRIVACY GUARD is the best, it controls what
apps are trying to access your personal info and you can control what
apps/companies see about you.
4)Just dont install
apps if you dont know what they do, you can mess up your phone if you have too much control with too little knowledge =D
5)Ignore people who are too dumb or dont have the time to properly answer you, TROLLS LOVE this site and love to not help out new peoeple, most of us here will be happy to help