I’m pretty sure it’s the local graffiti artist POUT. It’s just a graffiti character. Kid is probably young as the skill level is modest but it’s slowly getting better. Could be ANTBOI but I don’t think it is the same person.

You can see POUT written as the eyebrows. 🐱

Yes, Wednesday nights continue to focus on house/techno with Re:Set. Thursday nights are ELEMENTS Drum 'n Bass. Trance music is probably less common but there's an occasional psytrance song here and there on Thursdays.

Elements do have a Twitch channel that appears at least recently active. I am not sure if they stream weekly but if they do stream, you can likely find it here:

https://www.twitch.tv/elementshive

You're correct it's probably longer than that. Soul Clap used to run the event Mid-Week Techno from Phoenix Landing on Wednesdays prior to Re:Set starting, and it probably goes back even further prior to them starting this event.

Thursday night's ELEMENTS Drum & Bass is one of the longest running weekly DNB events in the world. It is run by a DJ named Lenore.

Re:Set at the Phoenix Landing is a weekly techno event that has been running non-stop for 15 years under different names.

It is located in Central Square Cambridge, and occurs every Wednesday night 10PM-2AM.

Edit: Thursday night's 'Keep On' at the Middlesex Lounge is also located across the street in Central Square.