It was a multi-prong attack. The goal was to generate uncertainty in the validity of results certified by the states, and create a justification for Mike Pence to delay certification.
Run a search on mike pence delay certification fake electors
and take your pick.
Honestly, no. People are pretty bad at filtering for Unicode alternative characters. It can be worked around when the site admins understand what’s going on, but…have fun skimming all of the Unicode code pages for every possible lookalike character.