What is it? If you’re trying to promote something, you should make sure you have what it needs to cater to the needs of the people.

I have clicked on the group and there is barely a sentence of description and a vague cover image, so I really have no idea what this is about.

Instead you could pin a post describing what the group is about or provide the details in the description. The extra step would be in providing concise links to important update posts regarding this group or even utilising font formats, emojis and other icons to spice up the decals.