Price is kept artificially low: a lot of buying higher, immediately selling lower going on. Annoying. It seems these "traders" don't want to make money (at first).

A scamming or dumping party would act differently, they would let the price rise, sell high, maybe even use their ETH or other resources to pump the price first. Not dumping first and taking losses.

Whoever they may be, don't let them scare you. HODL.
If they succeed with their strategy, use them, accumulate lower.
This is a good coin, and whether this is competition or coordinated trading for lower entrance - they know this is a good investment too, or they wouldn't bother doing this exhausting trading op.