I see you all can still argue without me.

France banned most mail in voting back in 1975 because of massive fraud (Corsica). Of course mail-in voting can be done honestly but it makes it easier to cheat.
Vote fraud happens every election but generally is not statistically significant, I do not expect it to be significant this time either, but it does erode public trust in vote integrity.
Hundreds of lawsuits were filed by democrats, before the election
Now after the election President Trump is challenging votes in several swing states. Last minute vote rules changes in several states exceeded constitutional authority of governors/vote officials. Vote rules are the purview of state legislatures.
The COVID pandemic is perhaps a valid reason to expand mail in voting but it can take years to implement a secure mail in voting system, not months like so many states attempted. The post office still can't manage to deliver my daily newspaper by the publication date every day (my Saturday WSJ did not arrive).
I expect at least some of the lawsuits to promote improved vote integrity rigor for future elections.
I have already shared my opinion about who won, and see nothing to change that. The vote result is not official until certified by each state.
The historic couple month delay between vote and inauguration was to account for slower information flow a few centuries ago. The world moves much faster now.
JR