They claimed 300,000 tickets were requested.' So long as they actually sold out capacity that number actually doesn't matter. We can figure out MAGAts versus spoofers by how many attended and total capacity (and some luck).
There were something like 10K who attended and the arena was half empty. 20K capacity in the arena.
It means that of the 20K tickets they gave out, half of them went to people who didn't attend. 50%.
Say that all the requests were from spoofers or MAGAts and that none of the MAGAts who got tickets stayed home - all who got a ticket arrived.
If the requests were mixed perfectly, it means that half the tickets went to MAGAts, half to spoofers. 300K means that maybe 150K of the tickets went to spoofers, 150K went to MATAts. 50%
If the spoofers were processed sooner (maybe they processed some as they came in and the spoofers asked faster), a lower percentage of the spoofers could have gotten half the tickets.
If they waited until all or most of the requests came in before handing them out to requestors at random, it would be the 50% number above.
In reality I think the number of "tickets" was probably higher since they set up additional capacity outside, that tells me they handed out a higher percentage of tickets to people who didn't attend. Either because they were spoofers or because they changed their mind about going.
I think that if they stated 300K, the number is probably half that to begin with, but if they actually gave out tickets to match capacity I think the total attendees divided by total capacity tells us MAGAts versus spoofers.
I probably messed something up, but that's how I would try to do the arithmetic after a few drinks.