True, during a bear market almost all cryptocurrency suffers a declining market. It is true that that is not the basis of whether the project is bad or not but we can see that during the bear market, shit projects are being purged. Those shit projects suffer a devastating market collapse and are unable to recover since the project doesn't have enough capitalization to push through, or are just abandoned by the developer because of incapability to solve the bear market's negative effect on their project.
but doing analysis and research is something every savvy investor should do as many new projects may not necessarily develop when the market recovers, and if the old and top projects are definitely promising because they have previous footprints, why choose new projects which have no previous footprint and although it looks promising. That's not a guarantee to stay involved as most new projects end up unprofitable and even end up being scams.
I agree it is the best time to look for a potential project that will go up in price multiple times after the bear market. It is also the best time to buy established cryptocurrency since the bear market often has lots of windows where investors can take advantage to get the cryptocurrency at a discounted price. Besides it is already proven that even the most established cryptocurrency suffers price crashes during bear seasons and recovers when the market transitions to a Bullish trend.