Which character(s) do you use mostly?

Block. I find Smoke spammers easier to beat. Simply because all his moves are easily blocked..

I know a couple of users you should be weary of...

oh sorry forgot about that. I use Jade. When I get bored I usually switch to Kitana for a few rounds and then switch back.

I think I already met up with the first one :).

But blocking works for teleport moves, but if he spams the granade from the other screen side, then it's kinda hard to get close to him. Also Jade has kinda of a slow start up with her boomerang.

PSN is rampant with these people lol.

The smoke bomb is also blockable. The boomerang is not the answer though. The best thing would either be dash and block until you get closer or use her shadow kick ex version. I'm not a Jade player so take my advice with a grain of salt.

My problem is the same with Ermac spammers. I can never get close enough and they'll either spam a telekinetic moves if i'm close or spam the projectile if i'm too far away(and Ermac's projectile is faster than mine)

be a turtle cause spammers shouldent be that hard cause there so easy to figure out.

Smoke's "Shake" Nuff said.

1) How do you avoid those Smoke spammers? If I move they either teleport punch me or send me flying with a granade.

Your going to have to block your ass off and just uppercut the blocked teleports.
They will either keep doing it and you get an easy win, or they will start throwing you and then your back on level ground.

2) Today I had a very annoying match. Since the CPU doesn't do this I didn't know how to react. The guy just jumps from left to right above me and does a low kick. I managed to catch him with a few uppercuts, but he still managed to do a lot of damage and catch me in a vulnerable state.

3 ways depending on angle:

1. Uppercut (throw it fast)

2. Jump with them and hit the attack button faster than they do.

3. Crouching punch

Or if you have a great anti-air like Kano's up ball. That works wonderfully as well.