It's understandable that people might not spend time educating...

It's understandable that people might not spend time educating someone that could possibly come across as asking leading questions or as an excuse to give backhanded negative assessments when they've only bothered putting 2 minutes into a company. TBH I'm not sure I'd trust an answer to those questions from any forum on HC anyways.

I'll give a 2 minute answer though even if it'll probably take 15 minutes.
Buru found a good oil deposit that was unexpected. They turned from a mostly unconventional gas company into an exciting conventional oil company as the whole market was bullish coming out of the GFC. There was a lot of promise and good reasons to be optimistic as they have good ground for what they are trying to achieve with a possible 3 billion barrels conventional oil prospectivity that they risked at a 10% success rate so the SP shot up in a good market.
They were then beset with a series of delays that chipped away at the SP. They lost a drilling season due to an erroneous aboriginal heritage issue, The next season under a new MD and with the confidence and structure of a larger company they spent big on a new drill contract, drilled one well that was bad and made the market second guess the oil field they had and then scrapped another year of drilling at some expense to ostensibly go back to the drawing board and more seismic. They then dropped their unconventional testing program. Those account for the big falls before the POO took it's toll and are logical responses to two years of delays and one failure. The MD that oversaw the expensive and scrapped drilling campaign left and now we're back to where Buru should have been 2-3 years ago drilling conventionals and testing the unconventionals again except now in a lower POO environment.

Basically the company has some very exciting prospects and has had some success. As an explorer they can only really justify high valuations when they're out finding oil so spending a couple of years mired in delays and not doing their job is going to hurt the SP. I'm sure most investors would have not held during this period had they known there was going to be two years of delays. The SP will jump when they get back to activity this year because that's when the possibility of making money comes back. It's not pumps and dumps, it's a company with good prospects offering good upside to shareholders when they actually drill. Conversely when a drill dusts or exploration is delayed there is the same downside as any oil driller where people don't want their money parked somewhere where it won't do anything for a year or exposure to downside.

There isn't anything particularly systemically bad about the company, they just need more drilling success. We might not have been having this conversation if the second last target they drilled (Victory-1) was successful. As a P10 ~100mmbbl target it would have been transformative to say the least.

If you're a spec oil investor then Buru is a good place to be, they have cheap onshore drilling with large targets. They're just in the same boat as a lot of other companies at the moment and a bit more in survival mode while the sector is in the doldrums. Unlike some other companies they do have some cash and assets so that's good. Unlike some other companies they don't have mountains of cash and assets so that's less good. It just comes down to a relative appraisal of where you want to put your money to have exposure to exploration success, what your risk appetite is and how you curate your portfolio to manage risk.