I mostly don't care how you use my addons
They're not my intellectual property, and if I would care how my stuff is spreading - I wouldn't upload it to workshop. That said, you still should respect original authors requests tho. If on addon page they're not present - it means I'm the sole author, in that case go crazy, with little requirements.
1. Crediting
2. Don't use for profit

What you shouldn't do
- Don't reupload. If addon is still alive - it's just rude. If it isn't - your addon can be deleted by the same people who deleted mine (i won't delete my addons without proper reason)
- Compress to save just a little bit of file size. If you compress like 100 mb, to 10 - no questions asked and no problems at that. But if same 100 mb to 80, or even 50 - there's not that much of a difference to actually try

What you can do
- Use on maps, gamemode content
- Modifying addons to add something new (like making SWEP from my weapon model ports, or using base model with your textures)
- Port to SFM (i just really don't care about it, so you can do it instead of me)
- Leaving donation link on addon page (no real person would say that donations are real profit)

Don't add me
I don't look forward to have maximum amount of friend in steam just because big number make brain go "nice" and I'm not a teacher. If you have reason to add me - please comment on my profile, I check it on regular.