If you want to trade, my advice is to choose to trade on a large altcoin exchange, which also has a lot of potential and popularity, whereas if you trade on a small exchange, the limit provided is also limited and that's certainly not far from the risks we face, it could even be losing the money you have.
Trading coins listed on small exchanges is also having many advantages like
1. It is a High risk high reward investment
2. Only a little capital is needed to invest in the project
3. Small investment can lead to extravagant results
4. Profit to loss ratio is also very good
5. If the token get listed at a major exchange then it can give handsome returns
So after looking at these advantages it seems that investing in the small tokens can be rewarding. The risk are also very high if investing big chunks of your portfolio into a single token which isn't that popular.