A lot of discussions on forum are all about "what coin should I buy? Why?"
Here's the opposite - I want to ask what alts you would never buy and why so.
My example:
Never buy BTT, Tron, Stellar and other coins where the tokens are giving away with all kinds of airdrops. Why? Emission grows with no influx of investors.
Doubting about Peercoin. Hybrid emission system doesn't seem reliable too, though lately PPC began spreading itself via well-known exchanges (changheangel or changelly - don't remember).
+ Libra. Not sure if any explanation needed.
I analyze the CMC volume and the future progress of coins or tokens. but most of my reasons are because coins lose value. so i didn't buy that. like tokens today, I have no desire to buy and hold long-term. like BTT, STQ, etc. because I've suffered a lot of losses from coins that are pump and dump. no future progress and only making junk coins. but for old coins, I'm still 50:50 like Stellar, Xrp, Doge, Dgb, etc.