Not just big guilds either, my personal one that’s just me and my partner…
Constant disconnects yesterday, I was falsely hoping maybe they were finally fixing our guild bank but nope.
This expansion is really the buggiest I’ve ever known WoW to be. I know not everyone is experiencing the same issues but just one look at support and the forums will tell you the complete picture.
All the screen freezes and achievement spam really tilts me all over. This HAS to be fixed asap. It literally screws over raid’s and even M+ to the point that it just gets tilting to even be online. Fix this asap or people will start unsub.
It’s becoming incredibly annoying to wipe close to kill on bosses due to a stupid lagspike due to achiev/logout/login bug. Same with M+, makes it very unpredictable and hard to coordinate due to lack of things to do on my end to mitigate it
This is a massive issue.
This is extremely annoying, hopefully it will get fixed asap.
Please make this highest priority. Not enjoying the game right now…
Meanwhile us people guildless 
Blizzard plz fix this! Also pretty bad in Delves. The more people online the worse it gets.
This bug caused us to wipe on a m+ boss today. Really annoying and extremly tilting! Would appreciate a quick fix!
This is quite annoying indeed, please look into this!
Shooting shooting, cat beast is going crazy, boss has 2% hp left and then suddenly out of the blizzard blue world…. Time stops for a second. A silent pause of frustration. As though the goblins lost the deal of the month. Then a ding, and yet another ding of byegone achievements. And suddenly me and my cat are lying flat staring at the alabaster tile floor wondering who did this excellent work while the now 100% boss is giving me a great big chuckle
Perhaps it’s time to fix this bug?
This isn’t good for the game, so I’m hoping that finding the root of this issue will be a priority of most importance in the near future! 
This is causing a lot of issues for the community and seeing people constantly leaving, because of something that is happening several times every day. This is a major issue that is hard to argue paying to play, and will cause people to stop playing.
Losing a single global is detrimental in m+ or high end raids.
Losing FOUR globals because of the spike is damning you, and causing either a wipe or loss of a key.
Please adress this Blizzard.
This is a huge problem for big guilds. Getting huge lag spikes too often because of the login and achievement bug.
At the very least acknowledge that it’s a problem. The radio silence on the issue, is disheartening. The problem is truly taking away some of the joy from the game.
This is indeed a serious issue. If communities fall due to this error, it must be adressed at once!
My guild has fantastic diplomats.
Every time someone logs in we get the guild achievement for diplomacy! 
We ought to play Helldivers 2…
FOR DIPLOMACY!!!
Huge issue, not possible to be in a guild and do high level content. Forced to leave
This is a huge problem for us while doing high end content (eg raid and m+). Will most likely leave our guild if it isn’t fixed within a short period of time.
Please fix the problem ASAP!