Twitter follower stats

I measured something on twitter. I have 67 followers. If you tagged a random 20% of them, how many could now look at their follower list and see a tagged user? The answer is about 20-50% of them, depending on which of my followers you tag.
The chart shows various runs of this process where the tag fraction varies from 10% to 100%. In each column, the lower + are cases where we happened to tag "unconnected" people. The upper + are cases where we tagged "connected" people, i.e. they led to a higher percent of followers seeing tagged people themselves.
There's only one way to tag 100% of my followers (hence the single + on the right), but even then, only 80.6% of them will see tagged users in their follower lists. In other words, about 20% of my followers are not followed by another one of my followers.
Atom feed of this blog
<class 'rdflib.syntax.parsers.n3p.n3proc.ParseError'> at /public/comments
Illegal literal character: u'\r'
Traceback (innermost first)
/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/syntax/parsers/n3p/n3proc.pyinunquote/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/syntax/parsers/n3p/n3proc.pyinliteral/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/syntax/parsers/n3p/n3proc.pyinliteralFinish/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/syntax/parsers/n3p/n3proc.pyinonFinish/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/syntax/parsers/n3p/n3p.pyinparse/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/syntax/parsers/n3p/n3proc.pyinparse/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/syntax/parsers/N3Parser.pyinparse/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/Graph.pyinparse/usr/local/lib/python2.6/dist-packages/rdflib-2.4.1-py2.6-linux-x86_64.egg/rdflib/Graph.pyinparse/my/site/blog/baby/commentServe.pyingetGraph/my/site/blog/baby/commentServe.pyinGET/usr/local/lib/python2.6/dist-packages/web.py-0.34-py2.6.egg/web/application.pyinhandle_class/usr/local/lib/python2.6/dist-packages/web.py-0.34-py2.6.egg/web/application.pyin_delegate/usr/local/lib/python2.6/dist-packages/web.py-0.34-py2.6.egg/web/application.pyinhandle/usr/local/lib/python2.6/dist-packages/web.py-0.34-py2.6.egg/web/application.pyinprocessRequest information
INPUT
COOKIES
No data.
META
ENVIRONMENT
You're seeing this error because you have
web.config.debugset toTrue. Set that toFalseif you don't to see this.