i`m not sure about whether guardians could lose their HWs or not BUT as for terrans and a.miners, this investment won`t gone over time unless he or she restarts... only major gordos can increase HW`s landsize for these 2 races...
so i`m trying to see how much any long term terrans and a.miners would invest for their empires... :)
perhaps i could make 255 major gordos every 3 - 4 months... and perhaps i could make it 4 times "sale" for a year... just imagine the landsize of such HW... yummy... :)
anyway, this is just a plan... it might work regardless me or others will initiate this project... so it`s just a survey for now... ;)