This is best answered already on StackOverflow:
According to Facebook dev policies "I. Features and Functionality" the
only limits are:
(>5M MAU) or (>100M API calls per day) or (>50M impressions per day).
(Mau means monthly users)
The best answer to this question from another forum
"After some testing and discussion with ...
Yes, it is possible. It is something called "stalking" someone, and Facebook has a feature for that (though not actually created for stalking people).
In Facebook, there is something called the "Close Friends" list on Facebook. If you want to know everything that your friend did, you would add him/her onto this list and even his/her likes will appear on ...
After some searches I finally found the needed app..
Friends Manager CRM
Select one or more than one friends
Drag&Drop friends from one list to another
Display all friends/ all friends in one particular list / all friends in no list
others (read the app description...)
If you use an instant messaging client application, such as Trillian, Pidgin, Digsby etc., you can set them up to be able to chat over Facebook too, and those programs have settings that let you play a specific notification sound when a particular friend comes online.
The Wolfram|Alpha Personal Analytics for Facebook meets some of the features you are looking for, namely:
If you have friends in common/how many of them.
If you have common networks/how many of them.
It can list your friends by rank, depending on how many common friends you have with them. It can also show "mutual friend clusters", which are ...
From a technological perspective, the important problem which you are addressing -- that of a disgruntled admin "hijacking" a Facebook application -- does not seem to currently have a solution.
This problem is virtually identical to that of a Facebook page being similarly hijacked, and as mentioned in this article on Mashable from Sept. 2011, the latter ...
It's not clear what you mean by "an application iframe". Are you the developer or the viewer of this frame? Anyway, this should be down to the viewer. If you are the developer, don't worry about it and don't try to block it because that's most likely against something you agreed upon not do.
Questions like these, deleting activity without deleting all posts one by one, are being asked regularly, and Facebook does not offer an automated solution for it. (I suppose they have their reasons not to.)
There are third-party scripts that will allow you to, such as the Social Book Post Manager Chrome extension. I have tested it with moderate results. ...
This kind of situation comes when you clicked on a rogue app link. A lot of times things that are designed to make you want to click them end up installing an app on your Facebook account that will send out stuff.
Here what Facebook said about how to deal with spam:
Spam is sometimes spread through clicking on bad links or installing malicious software. ...
This Facebook KB article shows what a Story Impression is (emphasis mine):
Impressions are the number of times a post from your Page is displayed, whether the post is clicked or not. People may see multiple impressions of the same post. For example, someone might see a Page update in News Feed once, and then a second time if their friend shares it.
Facebook Pages are public, subject to any country and age restrictions set by the Page administrators. There's no way to hide your activity on public Pages administered by others, from casual viewing or from Graph Search.
For Facebook Groups, it depends on how the Group was created:
At this time, Venmo does not update your Venmo profile picture when you update your Facebook profile picture, but you can manually change your profile picture using the link below:
Don't hesitate to send me an email if you have any other questions regarding your Venmo account. Email me at email@example.com ...