Terran is basically death ball steam roll you. Don't worry about the scouting. If you're worried, send a couple marines around. Like 4-5 for some map vision.
Well if you put pressure early as terran you can basically lock zerg down long enough to get your tech up. At that point you don't really need terribly much map control as you'll be death-ballin'
In higher levels, as terran, you have to do slow pushes - for example, at around 100 food is a good time to start pushing out from your base, and that push will last until you are maxed, hopefully. Then while macroing, you push further.
Are you really sure it doesnt? I can remember it does hit allied units but i might be wrong because i dont play the game but watch it alot on the internet. Might it be that it has changed in some patch?
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.
I'm on a page about incorrect corrections, and spent the better part of like two hours trying to get someone to understand that -5^2 = -25, not 25, and then that post had comments get reposted because that group is self sustaining, and that person was in turn trying to explain what I just explained to them. And I'm taking that as a victory