Absolutely no. Polkadot reached the 7th position because of its market performance and stability, no illegal activities at all. If you will follow polkadot project and team, you will notice the credibility and efficiency of the project plans. In fact, polkadot in expected to increase more its market value for the next few months based on what I read in telegram channel.
Exactly. To say the least, Polkadot is one of the few legitimate projects in the crypto/Blockchain space. There are many talented developers working on it day and night making sure the project delivers as intended. The sudden rise of DOT on the market, is largely attributed to the "De-Fi" craze surrounding the industry. As long as there's demand for Polkadot, it'll stay within the top ranks in market cap. At least, there's growing competition in the smart contracts space. While Polkadot may never replace Ethereum, it could become a viable alternative for "De-Fi". Dirt-cheap fees, and blazing-fast transactions will certainly attract the masses into DOT. All that's needed is developer support so Polkadot could have an ample dApp ecosystem. Only then, it'll be able to become a true contender of Ethereum.
Nonetheless, time will tell us if Polkadot's sudden rise will be sustainable. Everything will depend on mainstream adoption. The team working on Polkadot will need to make sure that the project delivers constant development and innovation in order to stay ahead of the game. As long as they do that, Polkadot will survive for a very long time. We're going to have to wait until the hype ends in order to determine DOT's true value on the market. Just my thoughts
