So, where to start... well, this site is now engineered to be a headache to use on mobile devices.
Want to find a meetup? Whatever you do do NOT sign in. Seriously. When you sign in meetup.com has a profile they use to determine which meetups to display and do not even give you access to the majority of them. Instead, you need to go to https://www.meetup.com/find/ to find a meetup. This is not too bad, just bookmark it, but it would be alright if not for the fact that meetup.com at times keeps redirecting you to https://www.meetup.com/apps to try to force you to download their app which of course is spyware.
After you find a meetup group you usually have to log in and then join it. Not a big deal? Well, meetup.com's join button is set to not work on mobile devices. To join a group I have to hold my finger on the join button until a context menu appears, select open in new tab, switch to that tab and then tap the join button in the group calendar page that opened in that tab. This has nothing to do with the lack of capabilities in the web browser, i was using an updated version of google chrome. After doing so I was not allowed to join until I upload a picture of myself and the only option presented was to upload a picture from facebook, no options to use a picture I already have on my phone. I did not see any option for using the pictures on my cell phone.
At this point I decided to access the web site from my laptop. Which still requires me to go to https://www.meetup.com/find/ without logging in to be able to find a meetup group without being profiled and limited in available choices. I also found that when trying to join the same group I was not asked to upload a picture from facebook.