Piggybacking on Brandons point.
The ol' "watch and see" is the standard operating procedure of most of the big boy entities online. Or as he mentioned if you did anything blatanly obvious and then were whacked it would just allow people to reverse-engineer IG's Algo.
Lets look at it as IG sees the people who make accounts into a few different categories
- Normal -> 99% of users
- Abnormal -> Us.
Break it down a bit further
n00bs -> Do the obvious instal-ban methods where they get whacked right as they create the account.
experienced -> Where an account gets flagged and they watch whats going on over a period of time? Gather more and more data on exactly what it is that they're doing. Add a particular filter -> "bam" whacked.
You have to think...how would they know what is abnormal if they don't gather data over a period of time. They don't do it immediately because (again my opinion only):
- Don't want to let you know the obvious thing you did to trip the filter
- Maybe, just maybe, the account is doing things that 'could' be a real person and they just wanna make sure.
Allow me to give one more example based upon my own personal experiences and data with PBN's and such:
Lets just apply the same mindset that you would use when you're creating websites or pages to rank with Google. Google likes to play 'mind tricks' with you. Most people refer to it as the 'sandbox' but there really is a patent that lays out where the reasoning comes from (one of many). It's mind-numbingly written (to throw you off) here: Notice....its from 2010!
But what it means is that when the G crawler visits your site there are so many different factors that they are looking for that will fall into whats known as a "spam signal". This can be anything from keyword stuffing, tiny texts, link manipulation (plus MANY others). At this point you are FLAGGED and watched (Sandboxed).
They do all kinds of fun things to your site/page to see if you DO anything.
They'll make your rankings go from low to high or high to low with no reasoning or warning.
The text for all the nerds is actually "where selecting a rank transition function includes:randomly selecting one of the plurality of rank transition functions"
I'm getting off track here....
But the gist of it is they notice something, you get flagged, they watch you to see what you're doing. During this watching phase they are also gathering data for abnormalities. I mean why whack you now when they can learn all your "dirty little tricks" (you bugger) and then slam the door shut on everyone.
You can draw the conclusion that if Google does it (especially since 2010) then IG does a version of it too.