I was at some point doing a bit of technical research on the top five coins, at that time BitConnect was among those five coins. Looking at the github repo, it didn't take me long time to figure out "don't invest in BitConnect".

Of course, all the issues you're mentioning above are also big red warning signs.

BitConnect also managed to cheat and inflate the market cap somehow, so when CoinMarketCap figured out, BCC fell quite far down on the list.