I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself. - Elon Musk
Let's Talk about the Resteem
To start, a word "resteem" in Steemit is the same as the word "retweet" in Twitter and "share" in Facebook. Resteeming is a Steemit term which allows you to broadcast a post to your followers. By resteeming, the post gets visible to the Home Feed of your followers.
Basically, since I followed 
Resteeming a post also gets reflected on your blogs.
A screenshot on my profile showing the posts from 
But what are the Pro's and Con's of Resteeming? How does Resteeming Many Blogs affect you?
Though resteeming creates an impact to the platform, there are also bad side of it. I made this post specifically to share awareness among users who are resteeming so much and still didn't have a full grasp of the platform.
Let's start with the Pro's (Positive Effects) of Resteeming :
Post Gets more Visibility
As mentioned above, once a post is resteemed, it is being broadcast to the followers of the users who resteemed the post. The more your post gets resteemed, the more it gets visible to a lot of users.
Potential Higher Rewards
Since the post gets visible to a lot of users, there is a big possibility that you receive higher rewards. Though content quality is an important factor to users upvoting your post, since it gets visible there's a possibility that they'll upvote a single post.
Post is Informative, Entertaining or Community-Driven
This is only the best that I can think when a post is resteemed (aside from a friend begged you to resteem lol). Either it is very Informative (science, electronics, fact, news, etc.), or Entertaining (fiction, poetry, art, etc.) or Community Driven (Campaign, Donation post, Challenge, etc.) then a post is resteemed. Meaning, they resteemed your post because of its importance to be shared to others.
The Con's of Resteeming | Resteeming Many blogs
Resteeming a lot of blogs creates a negative impact to you and to your followers. Resteeming is a critical aspect in Steemit and it shouldn't be either abused or misused. You should be responsible about this because you might lost important followers because of this reasons :
It clogs their Home Feed
Remember once a post is resteemed, it will appear on the home feed of your followers. If you resteem too much, you're invading their feed - an annoying thing!. I unfollowed some of Steemit users who are resteeming so much articles more than 10x than they blog.
Remember, there's no reward share when you resteem a post. Basically you're advertising their post on your behalf. This is an persuasive reason for them to unfollow you.
It clogs your Profile and Users cannot see your blogs anymore
Often times some users visits your blogs for them to see your posts especially you've done something to them. As a nature's response, they will return the favor. Either in upvotes or resteems or just to engage on your posts. But how will they look if when they check your blogs, all they can see are resteems? - Another annoying thing
You will lose followers
As a result on the things mentioned above, they will likely to unfollow you because you're clogging their feeds. Even if they wanted to see your blogs, all they can see are resteems and too difficult to dig into your blogs.
There are a lot more good thoughts about Resteeming but I'd like to end it here.
I think I have done all of my thoughts about resteeming and how it affects you if it will be mishandled or will be used improperly. Try to be responsible on your resteems. You're building a career here and you should focus on what you can do for the benefit of you.
Thanks for listening and I hope this helped you. If you have any comments, reactions or suggestions about this post, please don't hesitate to share your thoughts. I will surely appreciate it :)