When there's occur delaying phase, i suggest that you should leave that bounty. Because of you will lost your time just to wait for the bounty to resume. It is not the matter of the reward though, but kinda wasting your time that supposed could bring you more profit from the other bounties.

The longer the bounty means low rewards. If a bounty continues more than 4 weeks, many participants join it each day. So, the cake is divided between too many people. Eating the cake with 100 people and eating it with 500 is different. The income decreases. There must bu limitation for the bounties.

its actually depends if the reward is fixed or not. if the reward is a percentage of the amount collected It might get a higher reward the more currency they collected.

Actually it depends on the budget per bounty. Some bounty give big amount and if the bounty have some delayed some of ICO allotted additional budget. Some bounty program allotted budget but of course consider also the number of participants and bounty you are joining.

#Support Vanig

I don't have much experience about bounty but with the little I have gotten so far, I will advice you to study the project and try to find out if the project will later be successful by their deliverables, if yes then stay and finish what you started,  but if No,  then I would advise you to leave and join another campaign.

well it depends on your ranking in Bitcoin talk account,  the lower the rank the lower the stakes. if you want to leave in your current bounty youll waste your effort in the past months.. you need just to be patient in joining bounty. you should check their project first if its good to stay longer in their bounty if their project will be more successful. you need to check their team , check their backgrounds and availability in social media.

Yes I think you should see how many participants follow the prize, and how many coins, if you think you will get good results, my advice you should persevere to get big coins.

Defenitely because there is a possibility that for longer bounty in the end the campaign will not succeed so that means that you're just wasting your time and your effort, at least if it's shorter you will be able to know it right away.

Some bounty get longer because of certain reasons which at times is to the good of the investors and those working to promote the ICO and I think the longer the ICO,  the better the earnings you get if they close the participation form when necessary to avoid too many participants  because they will have enough time to materialize their set goals and objective and be able to implement the roadmap

There is no proper answer to this as it completely depends on the project. If you should leave or stay depends on various factors. I'd say follow your gut feeling: if something feels wrong you might as well join another valuable bounty, actually there's always at least one of those at any given time.