For the first time ever i experience this myself.
I always had my Mythic raiding guild and friends have my back when it came to gearing alts, from 110 to mythic ready in a week wasn't something i even had to think about, it just happened.
But now everyone has quit, and i returned to the game solo trying to gear my washed up 880 geared DPS character.
And boy it is a nightmare.
The requirements for Dungeons and Raids we used to make fun of? They are hitting me right in the face. 930+ for a +5 Mythic dungeon. 935+ for Heroic Tomb of Sargeras.
For the first time ever i am feeling unable to progress, to continue. The worldquests are capped out, i got all my 910 relinquished gear and yet its completely and utterly impossible to get into anything. 910 is not enough, not nearly.
All these people that complained about this shit for years, i feel you now.