I think the squeeze happened in January. I don't know of another instance where a squeeze happens twice. It is extremely unlikely that the professional hedge fund traders shorted this again.
It is way more likely that they are trading way overpriced options, which is what I am doing as well.
The media grabbed this when it happened, many new people heard it and began buying this which is what caused the second and subsequent spikes.
The buy and hold mentality has worked well on all these inexperienced people which makes selling puts so lucrative. There are enough inexperienced holders out there which will prevent a fast collapse.
Also, since there are not as many shorts out there as people say, another squeeze is very very unlikely making selling otm call options a fairly safe bet.