I read this interesting post from Bitcoin.com about 3 of the biggest scamcoins and how they lure their investors. One of the scamcoins they mentioned is bitconnect.
https://news.bitcoin.com/a-closer-look-at-how-three-of-the-biggest-scamcoins-lure-its-investors/

I myself believe this is a huge scam and it was funny to read the comments on this article and how many are falling for this scam.

A simple red flag for anyone investing in a crypto-currency:

Little or no active development.

There is no perfectly coded blockchain and bugs are constantly needed to be fixed along with improvements being added to the chains.

Let's take a look at some of the githubs.

BitConnect Github

https://github.com/bitconnectcoin/bitconnectcoin

Steem Github

https://github.com/steemit/steem

Bitcoin Github

https://github.com/bitcoin/bitcoin

Bitconnect only has 30 commits since launched about a year ago... While every other non-scamcoin blockchains are actively developing on the chains and have thousands of commits to their codebase.

Now people using bitconnect will say "but look at the market cap". So what? There are tons of scams that initially make money and have a large amount of money invested. This is nothing new. If it's so great, why is this coin not listed on any major exchanges? It's on small and lesser-known markets that have very little trade volume. The majority of their volume is on their own bitconnect exchange...

https://coinmarketcap.com/currencies/bitconnect/#markets